3 ms·

Atmosphere is mostly CO2, with relatively small amounts of other stuff. O2 and N2 are lighter, so a balloon filled with them could hold stuff up.

• dehrmann 4y ago
  So we could live in balloons?
  • pencilguin 4y ago
    That is the idea. Want to go first? I will watch carefully.
    • prox 4y ago
      Could be a cool game idea. Where you build in the clouds of Venus.
    • zeristor 4y ago
      "You truly belong here with us among the clouds."