Mars colonies and other big spaceflight dreams are possible with reusable rockets and spacecraft, SpaceX chief Elon Musk says. And the company is working to make full and rapid reusability feasible.
Sign Up for e-mail newsletters
Get breaking space news and the latest updates on rocket launches, skywatching events and more!
Thank you for signing up to Space. You will receive a verification email shortly.
There was a problem. Please refresh the page and try again.