Apollo 17, last of the lunar manned flights. (Above) Crescent earth rise before transearth injection (TEI) of Apollo. (Top right) Harrison H. Schmitt collecting rock sample with a lunar rake at the Taurus-Littrow landing site. (Center right) Rover driven beside lunar module by Eugene A. Cernan; South Massif is in the background. (Bottom right) Deployed components of the Apollo lunar surface experiments package (ALSEP), includ-ing lunar ejecta and meteorite experiment (LEAM) and radio-isotope thermoelectric generator (RTG). (Below) Large, split lunar boulder at the Taurus-Littrow landing site. [NASA]