Extremophile Worlds

The_Anger

The_Anger
Once in a while you come across worlds that just don't seem plausible... I've found a few but this one in particular has re-ignited my interest in cataloging them.



With that in mind I have a legit question: is it possible for a world like this to physically occur? what insanity permits a 2430K hot ice world with 235k atm's of water atmosphere? is the core ice and the outer layers rock/metal? any other extremophile planets like this that you've seen? do tell...
 

The_Anger

The_Anger
interesting.... it could be one of those.

though, trying to figure out what sort of ice it is, isn't going to be easy. eg, wiki's section on phases of ice only goes so high in temperature; the pressure would be about 5 orders larger putting it in the area of 10GPa, so whether it's an ice or liquid water depends on temperature, but it's hard to say. even then that's just the atmosphere lol...

in-game stats make no mention of the internal pressure, just atmospheric, so one can assume it's a body enveloped by water even if that body is itself ice; i dont think just having a temperature of 2430K would be enough to generate that sort of vapor pressure since there isn't anything particularly holding the water in a set volume aside gravity, which shouldn't be strong enough on that planet to overcome ~10 to ~30GPa or so (ie the atmosphere ought to expand and equalize at a lower density if it's just water at that temperature with nothing above it).
 

marx

marx
Ice worlds don't necessarily mean that the surface is covered in ice, just that the world itself is composed mainly of ice. In this case, 51.7%. No idea how heavy or high the atmosphere is: such an extreme surface pressure doesn't tell the entire tale on its own.
So, it's kind of hard to tell whether such a world would really be possible (would need the star's data anyway), or if it's just the Forge having produced a case of runaway greenhouse effect. Always interesting to see these, so nice find!

Also, a bit of nitpicking: extremophiles aren't planets, but organisms. Specifically, microbes that live in extreme conditions.
 
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