Monday marks the 40th anniversary of the July 20, 1969, Apollo 11 moon landing by American astronauts Neil Armstrong, Buzz Aldrin and Michael Collins. (See related article.)

In 1961, President John F. Kennedy spoke before a joint session of Congress in Washington. During the address, Kennedy issued the challenge, ". . .I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth." (Associated Press)

The...