var addthis_config = {"data_track_clickback":true};

Elon Musk has put his Mars-colonization vision to paper, and you can read it for free. SpaceX's billionaire founder and CEO just published the plan, which he

By Mike Wall Space.com 6-14-17

unveiled at a conference in Mexico in September 2016, in the journal New Space. Musk's commentary, titled "Making Humanity a Multi-Planetary Species," is available for free on New Space's website through July 5.
Read more »