Comment Re:Cloud Cities? (Score 1) 65
Theoretically this is possible on the outer three gas giants. As Jupiter goes, it's gravity is far too strong, plus it has the most intense radiation. So you would want to set up shop on one of the three outer gas giants. Gravity on the outer gas giants is close to Earth's, about 1 g for all three of them. There are actually layers of their atmospheres with Earth-like temperatures, but they are low in the atmosphere where the pressure is extremely high (we're talking about enough to liquidity hydrogen) so you'd want to be higher up. It's pretty cold in the upper layers, plus you're far away from the sun. Venus is probably a better target for a cloud city - about 50km up the atmospheric pressure about 1 atmosphere, temperature is about 0C, gravity is about 1G, and plenty of sun during the day. Plus the atmosphere is mostly CO2, which is denser than breathable air, so a balloon full of breathable air would float on Venus.