Let's make an alien biosphere !!! by idk1434
So basically, we will make a fictional biosphere on a fictional planet starting from designing a planet. Write your ideas in comments and I will pick the best. I will upload save for every stage of species evolution and add your ideas to them.
Comments
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idk1434 25th May 2021
Now that's a rocket fuel -
SamDwich 25th May 2021
oh ok, then about 60% hydrogen, 27% helium, 10% co2 and 3% unspecified gases -
idk1434 25th May 2021And we could also add some other gases because it would be interesting seeing more chemosythesis
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idk1434 25th May 2021About atmosphere: We are talking now about atmosphere composition on this planet before life developed, so it should be more similar to early Earth's atmosphere
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SamDwich 25th May 2021and yes i assume you are correct, XDeleter
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SamDwich 25th May 2021and why not a smol asteroid ~16 km in diameter orbiting at 3x the planet's radius, named Aionis, after Aion, the Greek primordial deity of Eternity
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SamDwich 25th May 2021i'll let someone else determine the planetary size
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idk1434 25th May 2021So year length is 346.75 earth days so that means it's 320 that planet's days because they are longer than Earth's
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SamDwich 25th May 2021Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases, as stated by a simple google search, so possibly the atmosphere composition of this planet should be about 74 percent nitrogen, 25 percent oxygen, 0.2 percent water vapour, 0.2 percent helium, 0.09 percent carbon dioxide, and ~0.22 percent unspecified gases
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SamDwich 25th May 2021the former option grants a year length o 390.55 Earth Days, the latter year length being 346.75 Earth Days