An Apollo 12 astronaut makes footprints on the surface of the moon, Nov. 19, 1969. Rocks collected on the mission were among those recently re-examined by a team of German astronauts.
(AP)
June 06, 2014

New Look At Apollo Rocks Finds Evidence Of Moon’s Birth

A new analysis of rocks collected by Apollo astronauts on the moon more than 40 years ago bolsters the leading theory of our natural satellite's origin — that it formed from a collision between a nascent Earth and another object some 4.5 billion years ago.