A million spectators gather to witness the launch of Apollo 11 from Kennedy Space Center in 1969. The mission will be the culmination of a decade of sacrifice, dedication, and sheer determination to get a foothold on another world. Now, the hopes of the nation rest on the next eight days. Look back on humankind's most ambitious journey, revealed through iconic and rarely seen footage, archival interviews with astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins, and secrets hidden inside Smithsonian's National Air and Space Museum.