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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1456%3A_On_the_Moon</id>
		<title>1456: On the Moon - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1456%3A_On_the_Moon"/>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;action=history"/>
		<updated>2026-04-10T05:52:59Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409514&amp;oldid=prev</id>
		<title>108.6.126.66: Moon landing is now Artemis IV</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409514&amp;oldid=prev"/>
				<updated>2026-04-03T04:44:31Z</updated>
		
		<summary type="html">&lt;p&gt;Moon landing is now Artemis IV&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 04:44, 3 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all twelve of those astronauts safely to the Earth, as well as all those who went 'to' the Moon without landing (two orbit-only missions, all crew-members who remained in orbit and the whole crew of the {{w|Apollo 13|mission}} that suffered a critical accident on the way to a proposed landing). However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all twelve of those astronauts safely to the Earth, as well as all those who went 'to' the Moon without landing (two orbit-only missions, all crew-members who remained in orbit and the whole crew of the {{w|Apollo 13|mission}} that suffered a critical accident on the way to a proposed landing). However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the Moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;3&lt;/del&gt;}}, the mission where humans will return, is planned to be some time in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;2027&lt;/del&gt;, when this comic would be around &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;thirteen &lt;/del&gt;years old.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the Moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;IV&lt;/ins&gt;}}, the mission where humans will return, is planned to be some time in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;2028&lt;/ins&gt;, when this comic would be around &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fourteen &lt;/ins&gt;years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the Moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the Moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the Moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the Moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>108.6.126.66</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409343&amp;oldid=prev</id>
		<title>81.179.199.253: That's a very 'right now' statement. No way to even futureproof it, as within an hour and a quarter it won't be &quot;&lt;on this date&gt; Artemis II is due to launch&quot; but (hopefully) &quot;...has launched&quot;. Perhaps wait to see if it does first, though, eh? (FTS issues?)</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409343&amp;oldid=prev"/>
				<updated>2026-04-01T21:09:49Z</updated>
		
		<summary type="html">&lt;p&gt;That&amp;#039;s a very &amp;#039;right now&amp;#039; statement. No way to even futureproof it, as within an hour and a quarter it won&amp;#039;t be &amp;quot;&amp;lt;on this date&amp;gt; Artemis II is due to launch&amp;quot; but (hopefully) &amp;quot;...has launched&amp;quot;. Perhaps wait to see if it does first, though, eh? (FTS issues?)&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 21:09, 1 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot; &gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Artemis 2 is launching today, being the closest any person has been to the moon in 40 years.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>81.179.199.253</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409296&amp;oldid=prev</id>
		<title>2601:1C0:8083:4230:753:133F:2CCF:68AC: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409296&amp;oldid=prev"/>
				<updated>2026-04-01T19:48:10Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 19:48, 1 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot; &gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;WERE GOING BACK TODAY!!!!!!!!!!!!&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Artemis 2 is launching today, being the closest any person has been to the moon in 40 years.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>2601:1C0:8083:4230:753:133F:2CCF:68AC</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409295&amp;oldid=prev</id>
		<title>2601:1C0:8083:4230:753:133F:2CCF:68AC: /* Explanation */  Artemis 2 is here!!</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=409295&amp;oldid=prev"/>
				<updated>2026-04-01T18:57:34Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt;  Artemis 2 is here!!&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 18:57, 1 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot; &gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;WERE GOING BACK TODAY!!!!!!!!!!!!&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>2601:1C0:8083:4230:753:133F:2CCF:68AC</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=360794&amp;oldid=prev</id>
		<title>JBYoshi: Update ETA for Artemis 3.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=360794&amp;oldid=prev"/>
				<updated>2025-01-02T03:30:03Z</updated>
		
		<summary type="html">&lt;p&gt;Update ETA for Artemis 3.&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 03:30, 2 January 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all twelve of those astronauts safely to the Earth, as well as all those who went 'to' the Moon without landing (two orbit-only missions, all crew-members who remained in orbit and the whole crew of the {{w|Apollo 13|mission}} that suffered a critical accident on the way to a proposed landing). However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all twelve of those astronauts safely to the Earth, as well as all those who went 'to' the Moon without landing (two orbit-only missions, all crew-members who remained in orbit and the whole crew of the {{w|Apollo 13|mission}} that suffered a critical accident on the way to a proposed landing). However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the Moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;2025&lt;/del&gt;, when this comic would be around &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;eleven &lt;/del&gt;years old.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the Moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;2027&lt;/ins&gt;, when this comic would be around &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;thirteen &lt;/ins&gt;years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the Moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the Moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the Moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the Moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>JBYoshi</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=349919&amp;oldid=prev</id>
		<title>172.70.163.48: /* Explanation */ Additional (noting that there is crew overlaps - from memory, there were Lovell, Young and Cernon who successfully went to (i.e. at least around) the Moon twice).</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=349919&amp;oldid=prev"/>
				<updated>2024-09-04T20:21:48Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; Additional (noting that there is crew overlaps - from memory, there were Lovell, Young and Cernon who successfully went to (i.e. at least around) the Moon twice).&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 20:21, 4 September 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot; &gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;twelve &lt;/del&gt;astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;twelve &lt;/ins&gt;of those astronauts safely to the Earth&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, as well as all those who went 'to' the Moon without landing (two orbit-only missions, all crew-members who remained in orbit and the whole crew of the {{w|Apollo 13|mission}} that suffered a critical accident on the way to a proposed landing)&lt;/ins&gt;. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;moon &lt;/del&gt;again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in 2025, when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Moon &lt;/ins&gt;again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in 2025, when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;moon&lt;/del&gt;. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;moon&lt;/del&gt;, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of [[John F. Kennedy]]'s famous inspirational [https://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Moon&lt;/ins&gt;. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Moon&lt;/ins&gt;, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.163.48</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=322642&amp;oldid=prev</id>
		<title>FaviFake at 11:06, 29 August 2023</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=322642&amp;oldid=prev"/>
				<updated>2023-08-29T11:06:55Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 11:06, 29 August 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l12&quot; &gt;Line 12:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 12:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in 2025, when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, is planned to be some time in 2025, when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;{{w|&lt;/del&gt;John F. Kennedy&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;|President Kennedy&lt;/del&gt;'s&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;}} &lt;/del&gt;famous inspirational [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;http&lt;/del&gt;://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;John F. Kennedy&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]]&lt;/ins&gt;'s famous inspirational [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;https&lt;/ins&gt;://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Kennedy's 1961 speech was also mentioned in the title text of [[753: Southern Half]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>FaviFake</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306154&amp;oldid=prev</id>
		<title>141.101.98.225: /* Explanation */ Actually, more rephrasing. (Note: &quot;sometime&quot;!=&quot;some time&quot;, amongst other things.)</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306154&amp;oldid=prev"/>
				<updated>2023-02-12T21:21:03Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; Actually, more rephrasing. (Note: &amp;quot;sometime&amp;quot;!=&amp;quot;some time&amp;quot;, amongst other things.)&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 21:21, 12 February 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;has been provided as being sometime &lt;/del&gt;in 2025, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;at a point &lt;/del&gt;when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is planned to be some time &lt;/ins&gt;in 2025, when this comic would be around eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>141.101.98.225</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306153&amp;oldid=prev</id>
		<title>141.101.98.225: /* Explanation */ It's 2023 now, so would not be 3 years to 2025. Also, does this need to be written in a manner that needs re-editing as time goes by? (Ok, maybe mission-slip will do that too, but avoid normal passage of time...)</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306153&amp;oldid=prev"/>
				<updated>2023-02-12T21:17:59Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; It&amp;#039;s 2023 now, so would not be 3 years to 2025. Also, does this need to be written in a manner that needs re-editing as time goes by? (Ok, maybe mission-slip will do that too, but avoid normal passage of time...)&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 21:17, 12 February 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, has been provided as being sometime in 2025, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;three years from now (and &lt;/del&gt;at &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;that &lt;/del&gt;point this comic would be eleven years old&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}. The launch date of when {{w|Artemis 3}}, the mission where humans will return, has been provided as being sometime in 2025, at &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a &lt;/ins&gt;point &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;when &lt;/ins&gt;this comic would be &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;around &lt;/ins&gt;eleven years old.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>141.101.98.225</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306151&amp;oldid=prev</id>
		<title>SilverTheTerribleMathematician: Updating it a little bit</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1456:_On_the_Moon&amp;diff=306151&amp;oldid=prev"/>
				<updated>2023-02-12T18:46:26Z</updated>
		
		<summary type="html">&lt;p&gt;Updating it a little bit&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 18:46, 12 February 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The phrase &amp;quot;If we can land a man on the Moon, why can't we &amp;lt;blank&amp;gt;&amp;quot; is commonly used to question a perceived shortcoming of government, society or humanity in general. The {{w|Apollo program}} landed {{w|List of Apollo astronauts#Apollo astronauts who walked on the Moon|twelve astronauts}} on the {{w|Moon}} in six landing missions from July 1969 to December 1972 and returned all of those twelve astronauts safely to the Earth. However, from 1964 to 1967, there were eight deaths of astronauts or men training to be astronauts: three in the Apollo One fire, four in T-38 crashes, and one in an F-104 crash. The premise is usually that if &amp;quot;we&amp;quot; (whether referring generally to humanity, or specifically to the United States) have been able to achieve this extraordinary feat, our inability to achieve some lesser goal is questionable and/or ironic. Right after the Philae landing, the similar hashtag [https://twitter.com/hashtag/wecanlandonacometbutwecant #WeCanLandOnACometButWeCant] began on Twitter.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Here, Megan cuts Cueball's argument's short by implicitly reminding him that humanity has not put another human on the Moon since the end of the Apollo program in December 1972 (nearly 42 years at the time this comic was published). New manned programs to return to the Moon, such as the {{w|Constellation Program}}, have been repeatedly cancelled. The {{w|Orion (spacecraft)|Orion spacecraft}}, which will be capable of carrying humans beyond {{w|low Earth orbit}} for the first time in over 40 years, executed its first test flight on the day after this comic was published. However, this is outdated, as {{w|NASA}} is planning to go to the moon again with the {{w|Artemis Program}}&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. The launch date of when {{w|Artemis 3}}, the mission where humans will return, has been provided as being sometime in 2025, three years from now (and at that point this comic would be eleven years old)&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a retelling of {{w|John F. Kennedy|President Kennedy's}} famous inspirational [http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx address to the U.S. Congress in May 1961] (&amp;quot;I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth&amp;quot;), which set into motion the Apollo program, except that this time, the speaker is talking about putting a man on planet {{w|Venus}}. The aide presumably explains to the president that, unlike Moon, Venus has gravity close to that of the Earth, but what's more, its surface {{w|Atmosphere_of_Venus|atmosphere}} density and pressure, and other factors including high temperature, strong winds and sulfuric acid clouds would make manned launch back to orbit practically impossible at our current technological level. As a result, the president backtracks from the goal of returning the astronauts safely to the Earth and comically limits the aspiration to landing an astronaut on Venus, full stop, without regard to the astronaut's safe return. This differs slightly from Kennedy's goal, which included the safe return of at least one astronaut from the moon. Although the overall 8:12 ratio of deaths to moonwalkers (during the period for Kennedy's speech to the end of the Apollo program) was too high to be considered &amp;quot;safe&amp;quot; by most standards, Kennedy had specified the safety only of the men who landed on the moon, and set a goal of &amp;quot;a&amp;quot; man returning safely. Technically, even if most of the men who landed died, as long as one returned safely by the end of 1969, Kennedy's goal would have been met.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>SilverTheTerribleMathematician</name></author>	</entry>

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