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For questions asking about the conditions which are required for the development of life as we know it.

1 vote

Could life exist in a universe, in which the roles of "stars" and interstellar space were re...

Assuming such a universe could exist, the only matter would be hydrogen and helium at best. Possibly, the only element in this universe could be hydrogen which won't improve the probability of life. @ …
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3 votes

What would be the ecosystem on a earth-like planet with substantially less oceanic water tha...

The simple answer is hotter and dryer. Something like the Triassic period of planet Earth, only more extremely so. The Triassic continental interior climate was generally hot and dry, so that typical …
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2 votes

How would a neutron star affect the habitability of planets orbiting a companion star?

So, thermal habitability is fine for the parameters of the secondary star and its planets even for rapidly rotating pulsars. …
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7 votes
Accepted

Can my habitable planet have a habitable moon?

It is possible for life to develop on the moon of a tellurian planet, if the moon has an atmosphere, there is liquid water, and sufficient time for it to evolve. Most persons looking at Earth's Moon …
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19 votes
Accepted

How could you keep a rogue planet warm(ish)?

Rogue planets can be kept warm. The key points can be found in the Wikipedia entry on rogue planets. Interstellar planets generate little heat nor are they heated by a star. In 1998, David J. Stev …
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6 votes

Which Stars Would Best Suit For the Habitable Zone of The Nine Norse Earths?

It turns out there is a simpler solution to the problem posed by the OP's question. Again this is based on the work of Sean Raymond. This is based on a paper by Smith and Lissauer (2010) which looked …
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0 votes

Which Stars Would Best Suit For the Habitable Zone of The Nine Norse Earths?

Planets of this size definitely satisfy the criteria for habitability. I guess I’m a little nervous that the very smallest planets in our chosen mass range might be borderline habitable. …
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