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Worldbuilding

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  • $\begingroup$ Why is it odd to wave away Nitrogen? Does it have some special properties that would make it common? $\endgroup$
    – Michael Stachowsky
    Commented Sep 11, 2019 at 14:54
  • $\begingroup$ @MichaelStachowsky it is one of the most abundant elements in the body of any living being. Life as we know would not evolve in an atmosphere with low levels of nitrogen. $\endgroup$
    – The Square-Cube Law
    Commented Sep 11, 2019 at 15:07
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    $\begingroup$ @StarfishPrime Two bodies with N2 rich atmospheres? Three. Earth (0.78 atm) , Titan (1.5 atm) and Venus (3.3 atm) (approximate values). $\endgroup$
    – TheDyingOfLight
    Commented Sep 12, 2019 at 13:47
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    $\begingroup$ @TheDyingOfLight that's a very good point, thanks. $\endgroup$
    – Starfish Prime
    Commented Sep 12, 2019 at 14:10
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    $\begingroup$ @MichaelStachowsky, unlike oxygen and hydrogen, nitrogen mostly doesn't form many non-gaseous compounds. Earth's nitrogen (and presumably Venus's and Titan's) is mostly present in the atmosphere, not the crust. $\endgroup$
    – Mark
    Commented Sep 12, 2019 at 20:17