Summary: Up-to-date night sky activity beginning October 13, 2009 through October 26, 2009 In this episode: Award-winning science journalist and space historian Andrew Chaikin sits down with Mark to talk about the LCROSS mission. Chaikin is best known as the author of "A Man on the Moon: The Voyages of the Apollo Astronauts" which was the basis for the HBO miniseries "From the Earth to the Moon".
