Elon Musk founded SpaceX with the long-term goal of developing the technologies that will enable a self-sustaining human colony on Mars.[102][112] In 2015 he stated "I think we've got a decent shot of sending a person to Mars in 11 or 12 years".[113] 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...