Colonization of Mars of sending a person to Mars in 11 or 12 years". Richard Branson, in his lifetime, is "determined to be a part of starting a population on Mars. I think it is absolutely realistic. It will happen... I think over the next 20 years, we will take literally hundreds of thousands of people to space and that will give us the financial resources to do even bigger things". In June 2013, Buzz Aldrin, American engineer and former astronaut, and the second person to walk on the Moon, wrote an opinion, published in "The New York Times", supporting a human mission
Buzz Aldrin NASA's Astronaut Group 2 was selected in 1962 was rejected on the ground that he was not a test pilot. He was aware of the requirement, and asked for it to be waived, but this request was turned down. On May 15, 1963, NASA announced another round of selections. This time requirement was that applicants have either test pilot experience or 1,000 hours flying time in jet aircraft, and Aldrin had over 2,500 hours of flying time, of which 2,200 was in jets. His selection as one of fourteen members of NASA's Astronaut Group 3, was publicly announced on October