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FlametopFred t1_j89lran wrote

possible but maybe not probable

universe is infinite but maybe not that infinite - that planet might have originated from a star system and then the sun died quickly or ? those would be my questions

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Infernalism t1_j89lsz4 wrote

Where would that energy and light come from, exactly?

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UmbralRaptor t1_j89m5zo wrote

There are proposals for how a free-floating planet could harbor life, but the environment would not be at all like what we see on Earth's surface.

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Cur-De-Carmine t1_j89mo00 wrote

Extremely unlikely. But given the Law of Large Numbers, I suppose it is technically not impossible. The physics just don't really work.

Jupiter emits twice as much heat as it absorbs from the Sun, which indicates it has its own internal heat source. But "Earth-like" is the hurdle in your proposed situation.

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Ulfgardleo t1_j89nauz wrote

by adding the condition that the atmosphere should be able to produce the energy: no. the only way you can do this is via geothermal energy and it would probably not be a lot.

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turbolag87 t1_j89o25k wrote

where would the energy come from to heat up that huge atmosphere?

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Gibson45 t1_j89qy73 wrote

Hey Cabbage, maybe a rogue planet with a radioactive core could be warm enough to have life in space. I don't know how an atmosphere could warm it up enough. Light could come from the radioactivity in some craters or something and then bioluminescence in caves later.

But the atmosphere would hold in the heat from the core

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space-ModTeam t1_j89ri7p wrote

Hello u/CevicheCabbage, your submission "Is it possible that an earth-like planet is floating independently in our universe somewhere with no sun and whose atmosphere harbors conditions to produce it's own sun-like light and energy?" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

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