Astronaut Buzz Aldrin Shares His Dream of Mars Exploration
Buzz Aldrin is, along with John Glenn, the most famous living astronaut. On July 20, 1969, Lunar Module Pilot Aldrin and Commander Neil Armstrong landed on the moon, where Neil and then Buzz took the first steps the following day. Buzz Aldrin retired from the US Air Force as a Colonel. He is the author of the new book "Mission to Mars: My Vision for Space Exploration," released as a National Geographic book.