Orion was first made for the Constellation program in 2004, as the Orion CEV (Orion Crew Exploration Vehicle). It was meant to be launched on the Ares I rocket. Then it would be able to go to the International Space Station. It was also planned to go to a spacecraft launched in pieces on different Ares V rockets, and the spacecraft with the Orion would go to the Moon, Mars, or another place.