Apollo 15 [ http://ees5-www.lan…] astronaut James Irwin [ http://ees5-www.lan…] works on the first Lunar Roving Vehicle [ http://www.nasm.edu…], before he and fellow astronaut David Scott [ http://ees5-www.lan…] take it out for a drive. Sloping up behind the lunar module [ http://www.nasm.edu…] "Falcon" on the left are lunar mountains Hadley Delta [ http://antwrp.gsfc.…] and Apennine Front, while about 5 kilometers behind Irwin is St. George Crater. The explorations conducted during the Apollo lunar missions discovered much about our Moon [ http://www.nasm.edu…], including that the Moon is made of ancient rock, that the Moon's composition is similar to Earth's, that life is not evident there, that the Moon underwent a great hot melting in its distant past, that the Moon has suffered from numerous impacts as shown by its craters, and that the Moon's surface is covered by a layer of rock fragments and dust.
