epa000235832 (FILES) A file picture taken in May 1969 of (L to R) US astronauts Neil A. Armstrong, commander; Michael Collins, command module pilot; and Edwin E. Aldrin Jr., lunar module pilot. July 20 marks the 35th anniversary of the Apollo 11 moon landing. The crew of Apollo 11 opened a revolutionary new phase in human evolution when Neil Armstrong and Buzz Aldrin became the first men to walk on the moon.  EPA/NASA FILES