Are you familiar with a geostationary satellite? That’s a satellite that orbits the equator at the same speed as the earth turns, so it’s always over the same spot of land, 22,500 miles up. Could you let down a rope and pull up some supplies? Learn more on this Moment of Science.
A geostationary satellite orbits the equator in the same direction and speed the earth turns. That means the satellite stays stationary with respect to the ground. It seems to be hanging in mid-air, if by mid-air, you mean 22,500 miles high. Learn more on this Moment of Science.