As Apollo 11 unfolded, the White House quietly prepared for the possibility that Armstrong and Aldrin would never return. This is the story of William Safire’s haunting memo, the speech Nixon was ...

Leading up to the historic 1969 Apollo 11 mission, ABC News built a mock Apollo command module to give viewers an inside look at how astronauts would travel to the lunar surface. See more of the ...

Step inside a fascinating space exploration museum and join us on an immersive journey through the history of moon missions.

Buzz Aldrin, Neil Armstrong, and Michael Collins were quarantined for three weeks because NASA was afraid of dangerous germs from the moon.

"It was the kind of thing that only happens once in your life," Kranz said. As millions around the world watched the first lunar landing attempt, the employees at NASA's mission control center in ...