An anonymous reader writes "NASA's new spaceship that will carry astronauts to the moon and later to Mars has been officially named Orion. NASA confirmed the name after it was accidentally leaked to the media. Previously called the Crew Exploration Vehicle (CEV), Orion will be NASA's main human spaceflight vehicle after the space shuttle fleet is retired in 2010. Orion was named after one of the brightest constellations in the entire sky. Earlier this year, the rocket that will launch Orion was named Ares I, and the heavy-lift rocket was named Ares V. NASA hopes the new names will become as familiar as Apollo and Saturn V."