From Scientific American: MOFFETT FIELD, Calif.鈥擡arth鈥檚 nearest neighbor, the moon, is far from being a 鈥渂een there, done that鈥 world in space science and exploration. That鈥檚 the message from scientists and engineers at NASA鈥檚 Lunar Science for Landed Missions Workshop, recently held here at the space agency鈥檚 Ames Research Center...