explain xkcd - User contributions [en]

1547: Solar System Questions

2015-07-06T17:47:38Z

Digitalb0y: The_Butterjunk_Effect link fix

{{comic
| number = 1547
| date = July 6, 2015
| title = Solar System Questions
| image = solar_system_questions.png
| titletext = My country's World Cup win was exciting and all, but c'mon, what if the players wore nylon wings and COULD LITERALLY FLY?
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page.}}

This comic is a list of questions which Randall has about the Solar System, which at first glance may appear to be things that Randall would like to learn about.
In actual fact most of the questions have not been satisfactorily answered or proven by anyone in the scientific community.

{| class="wikitable"
|-
! Question given
! Answer given by Randall (in Red)
! Comments
|-
| Why is the the Moon so blotchy?
| Lava
| "the the" could be a Randallism (intended or unintended).
|-
| Why are all the blotches on the near side?
| ...
| The nearside of the Moon is dominated by the blotchy 'seas' (volcanic flats), the far side by craters. Possibly an overabundance of craters obliterate the blotches, and the far side was always more 'exposed' to impacts.
|-
| Did Mars have seas?
| Yes (briefly?)
| Recent explorations have confirmed there was once standing water (not just occasional flowing water), but not yet how long, save that it created the sedimentary layers that we have seen.
|-
| Was there life on Mars?
| ...
| One of the big mysteries, not yet answered.
|-
| What's Titan like?
| Cold, yellow, lakes + rivers (methane)
|
|-
| What was Earth like during the Hadean?
| ...
| {{w|Hadean}}
|-
| Is the Oort Cloud a real thing?
| ...
| The {{w|Oort Cloud}} is a theoretical spherical cloud of icy planetsimals centred around our sun.
|-
| Why is the Sun's corona so hot?
| Something about magnets?
| The {{w|corona}} of the sun is hotter than it theoretically should be. The looping magnetic fields in this area could be responsible.
|-
| What are comets like?
| Precipitous
| The {{w|Philae (spacecraft)|Philae lander}} is next to a cliff...
|-
| Where's Philae, exactly?
| ...
| ...but we're not sure ''which'' cliff.
|-
| What's Pluto like?
| rowspan="2" | [Soon!]
| rowspan="2" | The probe {{w|New Horizons}} may be about to answer both of these questions.
|-
| What's Charon like?
|-
| Why don't we have in-between-sized planets?
| ...
| There is a size-gap between the rocky planets (up to Earth size) and the gas giants
|-
| What's Ceres like?
| [Working on it!]
| Another probe, {{w|Dawn (spacecraft)}}.
|-
| Why is Europa so wierd-looking and pretty?
| Ice over a water ocean
|
|-
| Why is Io so weird-looking?
| Sulfur volcanoes (? in the wrong places?)
|
|-
| Why are so many Kuiper Belt objects red?
| ...
| {{w|Kuiper Belt}}
|-
| What are those spots on Ceres?
| ...
| {{w|Ceres (dwarf planet)|Ceres}}
|-
| What's in the seas under Europa's ice?
| ...
| {{w|Europa (moon)|Europa}}
|-
| Which of the other moons have seas?
| Several
| (Partial/initial list possible? Definition of 'seas' would affect this.)
|-
| What are the big white things in Titan's Lakes?
| ...
| {{w|Lakes of Titan}}
|-
| What do Jupiter's clouds look like up close?
| ...
|
|-
| What's all that red stuff in the Great Red Spot?
| ...
|
|-
| What's pushing the Pioneer Probes?
| Heat from the RTG
| Discussed as the {{w|Pioneer anomaly}}. RTG stands for {{w|Radioisotope Thermoelectric Generator}}.
|-
| What pushes spacecraft slightly during flybys?
| ...
| The related {{w|Flyby anomaly}}.
|-
| Where are all the Sun's Neutrinos?
| Oscillating
| {{w|Solar neutrino problem}}
|-
| Why is there so much air on Titan?
| ...
|
|-
| Why <sic? Where?> does the Kuiper Belt Stop?
| ...
| A reference to the {{w|Kuiper Cliff}}.
|-
| Why is Iapetus weird-colored?
| ...
|
|-
| Why does iapetus have a belt?
| ...
|
|-
| What's the deal with Miranda?
| ...
| {{w|https://en.wikipedia.org/wiki/Miranda_(moon)|Miranda}} is the smallest of Uranus's five round satellites. Also possibly a [[Firefly|''Firefly'' reference]] since {{w|https://en.wikipedia.org/wiki/List_of_Firefly_planets_and_moons#Miranda|Miranda}} is the name of a planet in {{w|https://en.wikipedia.org/wiki/Serenity_(film)|''Serenity''}}, a film in the {{w|https://en.wikipedia.org/wiki/Firefly_(TV_series)|''Firefly''}} series.
|-
| Did Uranus and Neptune change places?
| ...
| The {{w|Nice model}} is a theory of how our solar system formed, which suggested the possibility of Uranus and Neptune having swapped places before reaching their current positions. Work by Professor S. Desch [http://dusty.la.asu.edu/~desch/publications/2007/Desch2007.pdf| also came to this result].
|-
| Did the Late Heavy Bombardment happen?
| ...
|
|-
| Did life start before it?
| ...
|
|-
| Is Europa covered in Ice Spikes?
| ...
|
|-
| Why haven't we build a big inflatable Extreme Sports Complex on The Moon?
| ...
| See, e.g., ''{{w|The Menace From Earth}}'', a 1957 short story by Robert Heinlein.
|
|-
| (Titletext) My country's World Cup win was exciting and all, but c'mon, what if the players wore nylon wings and COULD LITERALLY FLY?
| ...
| {{w|2015 FIFA Women's World Cup}} and {{w|The Butterjunk Effect}}
|}

==Transcript==
{{incomplete transcript}}

{{comic discussion}}

[[Category:Firefly]]

1547: Solar System Questions

2015-07-06T17:46:03Z

Digitalb0y: /* Explanation */

{{comic
| number = 1547
| date = July 6, 2015
| title = Solar System Questions
| image = solar_system_questions.png
| titletext = My country's World Cup win was exciting and all, but c'mon, what if the players wore nylon wings and COULD LITERALLY FLY?
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page.}}

This comic is a list of questions which Randall has about the Solar System, which at first glance may appear to be things that Randall would like to learn about.
In actual fact most of the questions have not been satisfactorily answered or proven by anyone in the scientific community.

{| class="wikitable"
|-
! Question given
! Answer given by Randall (in Red)
! Comments
|-
| Why is the the Moon so blotchy?
| Lava
| "the the" could be a Randallism (intended or unintended).
|-
| Why are all the blotches on the near side?
| ...
| The nearside of the Moon is dominated by the blotchy 'seas' (volcanic flats), the far side by craters. Possibly an overabundance of craters obliterate the blotches, and the far side was always more 'exposed' to impacts.
|-
| Did Mars have seas?
| Yes (briefly?)
| Recent explorations have confirmed there was once standing water (not just occasional flowing water), but not yet how long, save that it created the sedimentary layers that we have seen.
|-
| Was there life on Mars?
| ...
| One of the big mysteries, not yet answered.
|-
| What's Titan like?
| Cold, yellow, lakes + rivers (methane)
|
|-
| What was Earth like during the Hadean?
| ...
| {{w|Hadean}}
|-
| Is the Oort Cloud a real thing?
| ...
| The {{w|Oort Cloud}} is a theoretical spherical cloud of icy planetsimals centred around our sun.
|-
| Why is the Sun's corona so hot?
| Something about magnets?
| The {{w|corona}} of the sun is hotter than it theoretically should be. The looping magnetic fields in this area could be responsible.
|-
| What are comets like?
| Precipitous
| The {{w|Philae (spacecraft)|Philae lander}} is next to a cliff...
|-
| Where's Philae, exactly?
| ...
| ...but we're not sure ''which'' cliff.
|-
| What's Pluto like?
| rowspan="2" | [Soon!]
| rowspan="2" | The probe {{w|New Horizons}} may be about to answer both of these questions.
|-
| What's Charon like?
|-
| Why don't we have in-between-sized planets?
| ...
| There is a size-gap between the rocky planets (up to Earth size) and the gas giants
|-
| What's Ceres like?
| [Working on it!]
| Another probe, {{w|Dawn (spacecraft)}}.
|-
| Why is Europa so wierd-looking and pretty?
| Ice over a water ocean
|
|-
| Why is Io so weird-looking?
| Sulfur volcanoes (? in the wrong places?)
|
|-
| Why are so many Kuiper Belt objects red?
| ...
| {{w|Kuiper Belt}}
|-
| What are those spots on Ceres?
| ...
| {{w|Ceres (dwarf planet)|Ceres}}
|-
| What's in the seas under Europa's ice?
| ...
| {{w|Europa (moon)|Europa}}
|-
| Which of the other moons have seas?
| Several
| (Partial/initial list possible? Definition of 'seas' would affect this.)
|-
| What are the big white things in Titan's Lakes?
| ...
| {{w|Lakes of Titan}}
|-
| What do Jupiter's clouds look like up close?
| ...
|
|-
| What's all that red stuff in the Great Red Spot?
| ...
|
|-
| What's pushing the Pioneer Probes?
| Heat from the RTG
| Discussed as the {{w|Pioneer anomaly}}. RTG stands for {{w|Radioisotope Thermoelectric Generator}}.
|-
| What pushes spacecraft slightly during flybys?
| ...
| The related {{w|Flyby anomaly}}.
|-
| Where are all the Sun's Neutrinos?
| Oscillating
| {{w|Solar neutrino problem}}
|-
| Why is there so much air on Titan?
| ...
|
|-
| Why <sic? Where?> does the Kuiper Belt Stop?
| ...
| A reference to the {{w|Kuiper Cliff}}.
|-
| Why is Iapetus weird-colored?
| ...
|
|-
| Why does iapetus have a belt?
| ...
|
|-
| What's the deal with Miranda?
| ...
| {{w|https://en.wikipedia.org/wiki/Miranda_(moon)|Miranda}} is the smallest of Uranus's five round satellites. Also possibly a [[Firefly|''Firefly'' reference]] since {{w|https://en.wikipedia.org/wiki/List_of_Firefly_planets_and_moons#Miranda|Miranda}} is the name of a planet in {{w|https://en.wikipedia.org/wiki/Serenity_(film)|''Serenity''}}, a film in the {{w|https://en.wikipedia.org/wiki/Firefly_(TV_series)|''Firefly''}} series.
|-
| Did Uranus and Neptune change places?
| ...
| The {{w|Nice model}} is a theory of how our solar system formed, which suggested the possibility of Uranus and Neptune having swapped places before reaching their current positions. Work by Professor S. Desch [http://dusty.la.asu.edu/~desch/publications/2007/Desch2007.pdf| also came to this result].
|-
| Did the Late Heavy Bombardment happen?
| ...
|
|-
| Did life start before it?
| ...
|
|-
| Is Europa covered in Ice Spikes?
| ...
|
|-
| Why haven't we build a big inflatable Extreme Sports Complex on The Moon?
| ...
| See, e.g., ''{{w|The Menace From Earth}}'', a 1957 short story by Robert Heinlein.
|
|-
| (Titletext) My country's World Cup win was exciting and all, but c'mon, what if the players wore nylon wings and COULD LITERALLY FLY?
| ...
| {{w|2015 FIFA Women's World Cup}} and {{w|https://en.wikipedia.org/wiki/The_Butterjunk_Effect|The Butterjunk Effect}}
|}

==Transcript==
{{incomplete transcript}}

{{comic discussion}}

[[Category:Firefly]]