Editing 2844: Black Holes vs Regular Holes
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| Definitely fatal | | Definitely fatal | ||
| Sometimes fatal | | Sometimes fatal | ||
− | | Falling into a black hole is almost always fatal, because of the shearing effect created by tidal forces and/or radiation from its {{w|accretion disk}}. If the black hole was extremely massive (on the order of many galaxies' worth of mass) and had a very large event horizon, the tidal forces at its event horizon would not be very strong, nor would there be a noticeable accretion disk | + | | Falling into a black hole is almost always fatal, because of the shearing effect created by tidal forces, the intense gravity and/or radiation from its {{w|accretion disk}}. If the black hole was extremely massive (on the order of many galaxies' worth of mass) and had a very large event horizon, the tidal forces at its event horizon would not be very strong, nor would there be a noticeable accretion disk, though the gravity would still be enough to turn anything falling into it into a "spaghetti". On the other hand, only if a regular hole is deep enough (or someone falls incorrectly), is it possible for someone to die by falling into it. |
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! scope="row" | Created by the Big Bang | ! scope="row" | Created by the Big Bang | ||
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| Yes | | Yes | ||
| No | | No | ||
− | | If a star is large enough, when the star dies, it may still have enough gravity to collapse back into itself, thus creating a black hole. Additionally, any star | + | | If a star is large enough, when the star dies, it may still have enough gravity to collapse back into itself, thus creating a black hole. Additionally, any star in range of a black hole, such as those near the supermassive black hole in the center of the galaxy, may also fall into it. Other things may collapse into regular holes in a different sense - for example, a house may collapse into a sink hole. However, most regular holes are not large enough for a star to collapse into in this way (unless one considers the near vacuum of space itself to be a 'hole'). |
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! scope="row" | Explored by humans in famous sci-fi stories | ! scope="row" | Explored by humans in famous sci-fi stories |