Have you ever thought about why we don't send airplanes into space? First, we need to understand how an airplane wing works. An airplane wing is designed to split the air in a very certain way. The shape of the wing forces the air on top to occupy more space. This lowers the air pressure on top of the wing. On the bottom side the shape of the wing squeezes the air which lowers its pressure. These opposite forces work together to lift the airplane. So why doesn't the wing work like this in space? The answer is because there is no air in space. The wing is useless.