19 August 2015

Cloud city

If you [go] all the way to the top of Venus’s [hostile] atmosphere, you’re rewarded with — shockingly — pleasant, livable conditions. Randomly, at the top of Venus’s clouds is a layer where the temperature and pressure are similar to those on Earth, and because oxygen and nitrogen both rise in Venus’s dense atmosphere (like helium does on Earth), the air in that layer might actually be close to breathable. That’s led some scientists to actually discuss human colonization of Venus’s high atmosphere, building “cities designed to float at about fifty kilometer altitude in the atmosphere of Venus.”
Wait by Why Tim Urban
Suspended over the abyss, the life of Octavia's inhabitants is less uncertain than in other cities. They know the net will only last so long.
Invisible Cities Italo Calvino

Image NASA

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