Apollo 11 Command Module Pilot Michael Collins recalls his view of Earth from lunar orbit during the historic July 1969 mission.
Apollo 11 was about exploration, about taking risks for great rewards in science and engineering, about setting an ambitious goal before the world, and then finding the political will and the national means to achieve it.
Apollo 11 Commander Neil Armstrong discusses the positive impact of the Cold War-era Space Race on future cooperation between the United States and Russia.
Videos courtesy of NASA