From 1969 through 1972 six Apollo missions landed on the moon and returned a total of 840 pounds of moon rocks to the Earth. Geologists were able to study them and learned an enormous amount about the composition and formation of the moon. However, those same rocks have been the center of several controversies and mysteries ever since they came back to Earth. Learn more about moon rocks and where they are now on this episode of Everything Everywhere Daily.Learn more about your ad choices. Visit megaphone.fm/adchoices