NASA's greatest achievement was landing men on the moon, via the spacecraft Apollo 11, on July 20, 1969. It took eight years after President Kennedy's announcement of the project to realize the goal. The first man to take the first step on the moon, Neil Armstrong, uttered his famous words, "One small step for man, one giant leap for mankind." After this mission, there were five more to the moon.
How can the military use satellites?
Answered by Planet Green
What makes Hubble's mirrors so special?
Answered by Discovery Channel
What does the SETI@home screensaver look like?
Answered by Science Channel