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Q&A Could a planet with three-quater earth gravity and neon-/argon-based atmosphere exist, and what would life do with it?

I'm creating a world three-quarters the gravity of Earth, and the composition of the atmosphere are as followed: 74% Neon (or Argon) 18% Nitrogen 5% Oxygen 1.6% Carbon Dioxide 0.9% Water Vapor...

2 answers  ·  posted 8y ago by Twig‭  ·  last activity 8y ago by Twig‭

Question biology atmosphere reality-check currents xenobiology