NASA moon landing program, Saturn V rockets, and Apollo astronauts.
Test your knowledge with these top questions!
Which NASA controller gave Apollo 12 the famous "SCE to AUX" order?
Aaron remembered the obscure signal switch from an earlier test, and the call restored Apollo 12 telemetry almost instantly.
How did Apollo astronauts rejoin the command module after leaving the Moon?
The two craft met in lunar orbit, then the crew floated into the command module before the ascent stage was cast off.
What keypad-and-display unit did Apollo astronauts use to talk to the guidance computer?
Astronauts typed two-number codes for verbs and nouns, telling the computer which job to run and what numbers to use.
Which Apollo mission first drove a lunar rover on the Moon?
Apollo 15 astronauts David Scott and James Irwin drove the battery-powered rover around Hadley-Apennine in July 1971.
In which year did the Apollo 1 fire kill Gus Grissom, Ed White, and Roger Chaffee?
The January 27, 1967 test was a routine launch rehearsal on the pad, so the tragedy stunned Americans following the Space Race.
Why did the Apollo 11 Moon landing look blurry on home TV sets in 1969?
The lunar camera sent a slow nonstandard signal that ground stations converted for home broadcasts.
What exploded aboard Apollo 13 in April 1970?
The blast struck about 56 hours into the flight and forced the crew to cancel the Moon landing.
Which Apollo 17 astronaut was the only trained geologist to walk on the Moon?
Harrison Schmitt earned a geology doctorate from Harvard and had helped train earlier Apollo crews in field geology.
Where did the Apollo 11 capsule splash down after returning from the Moon?
The USS Hornet waited in the Pacific near Hawaii to lift the Apollo 11 crew aboard after splashdown.
Which astronaut became the second person to walk on the Moon?
Aldrin followed Neil Armstrong out of the lunar module about 20 minutes later.