Space may be the final frontier, but Mars should be the next one.
At a spaceflight propulsion conference held by the American Institute of Aeronautics and Astronautics on Tuesday, Elon Musk -- the billionaire founder of PayPal and the man behind leading private spaceflight company SpaceX -- spoke about just how to get humanity there.
SpaceX Founder Elon Musk Wants Man to Be a Multi-Planet Species - FoxNews.com