Joseph Gutheinz Jr

Beginning with Apollo 11, which landed on the Moon on July 20, 1969, and ending with Apollo 17, in December 1972, US astronauts collected 842 pounds (382 kilograms) of rocks and lunar soil.

After Neil Armstrong took a "giant leap for mankind" on the Moon nearly 50 years ago and collected rocks and soil along the way, Richard Nixon presented lunar souvenirs to every nation -- 135, at the time.

Beginning with Apollo 11, which landed on the Moon on July 20, 1969, and ending with Apollo 17, in December 1972, US astronauts collected 842 pounds (382 kilograms) of rocks and lunar soil.

After Neil Armstrong took a "giant leap for mankind" on the Moon nearly 50 years ago and collected rocks and soil along the way, Richard Nixon presented lunar souvenirs to every nation -- 135, at the time.