The definition of disability under Social Security is different than other programs. Social Security pays only for total disability. No benefits are payable for partial disability or for short-term disability. We consider you disabled under Social Security rules if: You cannot do work that you did before;
UCSB Science Line. A rocket ship, on its way to the moon, can get up to almost 25,000 miles per hour in order to escape the Earths atmosphere. However, it does not go that fast the whole way. Also, the ship cannot fly directly from the Earth straight to the moon surface.
The orbit of the moon around the Earth is not a perfect circle so the distance varies a little. The average distance is around 384,400 kilometers or 230,600 miles. When NASA's Apollo astronauts flew to the moon in the late 1960s and early 1970s, it took them three days to reach the moon and enter orbit after launch. Did you know that the moon is moving away from Earth? It moves away at about 3.8 centimeters per year. SpaceKids on SPACE.com provides simple, straightforward answers to really big cosmic questions.