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1 vote
0 answers
92 views

What would the likely color of an exoplanet's plants be depending on the combination of atmosphere & parent star? [duplicate]

This could be construed as a too broad question, but some examples is all I'm asking for really. An answer based on any combination of atmosphere and star would constitute a good answer. (Or better ...
Fred the John's user avatar
3 votes
1 answer
241 views

Can life evolve on planets of this binary system? [closed]

I am considering a system with a primary star and a secondary star. The secondary star orbits the primary star very much like a planet, that means with a somewhat big distance from the primary star. ...
Arhama's user avatar
  • 45
8 votes
4 answers
5k views

What would life on Earth be like if the Sun was replaced by two blue giants?

Allright, what i'm asking is how life would be like on Earth (which pretends Earth could develop life in the "short" life of a blue giant) if we had two blue giants in the sky instead of the Sun?
ballah's user avatar
  • 767
10 votes
2 answers
881 views

Varying Gravity

Suppose a very large planet orbited a star or other spacial body in an oval shaped path, similar to Earth's but closer to induce a varying gravity during orbit. The planet has a large gravity well ...
The Glis Jackel's user avatar