Michael Collins

The third member of NASA's 1969 Apollo 11 Moon mission, astronaut Michael Collins, passed away on April 28 at the age of 90 after a long battle with cancer. Collins, who flew with partners Neil Armstrong and Buzz Aldrin, was pilot of the command module. Ironically, he never set his foot on the Moon. After Collins' demise, Aldrin remains the only alive Apollo 11 astronaut.