this post was submitted on 27 Feb 2025
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Science Memes

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Sun God (mander.xyz)
submitted 1 day ago by [email protected] to c/[email protected]
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[–] [email protected] 19 points 1 day ago* (last edited 1 day ago) (2 children)

Less about size and more about size and relative distance. Think about being on Mercury and the entire sky is blazing sun - and yet it survives.

[–] [email protected] 3 points 1 day ago (2 children)

I mean, nothing on Mercury survives. At night it's -170 degrees Celsius and +430 degrees at day.

[–] [email protected] 1 points 14 hours ago

Those are some mercurial tempera...tures

[–] [email protected] 2 points 18 hours ago (1 children)

There was a time people thought Mercury would have some "twilight" acreage that was always at habitable temperatures. Then we learned that, while yes it is tidally locked with the Sun, it is locked in a 3:2 resonance so it does rotate with respect to the sun, and everywhere gets both scorched and frozen to uninhabitability.

[–] [email protected] 1 points 5 hours ago

So we just need movable habitats like in Howl’s Moving Castle or Mortal Engines

[–] [email protected] 7 points 1 day ago (1 children)

on Mercury and the entire sky is blazing sun

I've never thought about this and holy shit

[–] [email protected] 11 points 1 day ago* (last edited 1 day ago)

That's not the case though. Sure the sun would seem bigger on mercury but it's not gonna fill the entire sky.

Edit: According to NASA the sun would appear 3 times bigger and 7 times brighter on mercury.