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What types of lifeforms might this cold world have?

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The average temperature on this world surface is −55 degrees Celsius. 80% of the surface of this world is covered by liquid ammonia oceans. This planet has a surface gravity of 0.75"‰g. The atmosphere of this world is 93% elemental nitrogen 3% elemental hydrogen gas, 3.5% diborane gas, and 0.5% other substances. This world has lots of boron and nitrogen compounds on its surface and dissolved in its oceans, rivers, and lakes of liquid ammonia. This world orbits a gas giant that is 1.5 times the mass of Jupiter. This world is about 325,000"‰km away from its planet. The planet that this world orbits orbits a star that is 1.5 times the mass of the Sun.

What types of life forms might evolve on this world and how would they interact?

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This post was sourced from https://worldbuilding.stackexchange.com/q/47979. It is licensed under CC BY-SA 3.0.

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