PolicyOnce upon a Time: The Story of the Apollo Program [Timeline]December marks the 40th anniversary of humankind's last departure from the moonBy John Matson on December 6, 2012Advertisement Rights & Permissions ABOUT THE AUTHOR(S)John Matson is a former reporter and editor for Scientific American who has written extensively about astronomy and physics. Follow John Matson on TwitterRecent Articles by John MatsonAstronaut Chris Hadfield Covers David Bowie's "Space Oddity" in Space [Video]In Einstein's Universe, Airplanes and Staircases Are Time MachinesSean Carroll Entangles Time and Entropy