Questions tagged [sun]

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22
votes
8answers
5k views

Can an asteroid go through the sun?

I'm looking into a story where the Earth is hit by an asteroid going very fast. This must be a complete surprise and I want to go a mile further than just giving the entirely valid solution of it ...
4
votes
14answers
2k views

How could physics possibly explain the sun hanging motionless in the sky?

Right at twilight, the sun stops setting. It just stays in the same spot in the sky permanently. What would have to happen in physics for this to happen? Would there need to be an event prior to this? ...
2
votes
3answers
155 views

If Earth started to lose mass, how would this affect its orbit around the sun?

Im building a world where the matter in the inner layers of the Earth starts to be replaced by a much lighter element causing earth to lose its mass. Would this eventually cause the Earth to leave the ...
0
votes
0answers
73 views

World building - Sky color, star class based on the color of the plants [duplicate]

Starting a new project here If my plant foliage is blue-green/turquoise and my under water plant are in the reddish-brown/ochre color - What color should the sky be (mid day and dawn/dusk) and what ...
1
vote
4answers
454 views

Hosting Life Near an Anti-Star

An anti-star is a star that produces energy via antimatter annihilation. As annihilation is 100% efficient at turning matter into energy, an anti-star the mass of the Sun produces 100 times as much ...