Is This the Spaceship That Will Take Us to Mars?

Somewhere deep in the Marshall Space Center, in an unmarked beige hangar, NASA is building a spaceship. A spaceship built with spare parts, scrap hardware from the International Space Stations, a left-over aluminum-lithium cylinder and even museum mockups. One day, it may become the vessel that takes humans to Mars. » 10/22/12 1:00pm 10/22/12 1:00pm