Did you know staying in Orbit requires very little energy. Once up to 5 miles a second. The rate of fall (due to gravity) will balance the vector of flying off in a straight line. To return to earth you just need to decelerate.
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yeah. and it's easier to have that kinda speed when there's no atmo to get in the way.
satellites be out in orbit singin ludacris to air molecules. or at least on the way up, maybe on the way back in, too. [media=https://youtu.be/cEuU64Zt4B0]