AdvertisementMoon Rocks Still Awe, And Scientists Hope To Get Their Hands On MoreJuly 08, 2019Nell GreenfieldboycefacebookEmailBuzz Aldrin (left) practices collecting a sample while Neil Armstrong photographs during a training session before the Apollo 11 mission. The Apollo 11 astronauts returned with about 50 pounds of material, including 50 rocks. (NASA)
