Moon rock

Moon rock

Fig. 5.21 . Harrison Schmitt (1935- ) about to walk behind Split Rock during the Apollo 17 mission in December 1972. Eugene Cernan (1934- ) had already scooped up samples from the debris on the front side of the boulder. The huge rock rolled down about a billion years ago, splitting into five pieces during the fall. The total length of the boulder, when reassembled is about 20 meters. Apollo 17 was the last of the six missions that landed humans on the Earth’s Moon and returned them safely. It investigated the dark terrain at the Taurus-Littrow landing site, deployed explosives to be used with seismographs to examine the lunar interior, and returned rocks to the Earth (Courtesy of NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University