SpaceX Mars Mission: People Mover
Private spaceflight firm SpaceX is looking farther afield than low-Earth orbit. Elon Musk, the billionaire founder and CEO of SpaceX, wants to establish a Mars colony of up to 80,000 people by ferrying explorers to the Red Planet for perhaps $500,000 a trip. A new reusable rocket may serve as the vehicle, rumored to bear the name MCT, for Mass Cargo Transport or Mars Colony Transport. [The Rockets and Spaceships of SpaceX (Photos)]