Crew Exploration Vehicle

CEV initial concept in Lockheed Martin design, showing delta-wing crew module (at right), with a mission module and propulsion stage (with rocket engines) for interplanetary flight.
Orion, as a later design, after the initial plans for the Crew Exploration Vehicle led to development of the Orion.

The Crew Exploration Vehicle (CEV) was a component of the U.S. NASA Vision for Space Exploration plan. A competition was held to design a spacecraft that could carry humans to the destinations envisioned by the plan. The winning design was the Orion spacecraft.

Although it was originally conceived during the Space Exploration Initiative during the 90s, official planning for the vehicle began in 2004, with the final Request For Proposal issued on March 1, 2005, to begin a design competition for the vehicle. For the later design and construction phases, see Orion (spacecraft). The Orion CEV became part of NASA's Constellation Program to send human explorers back to the Moon, and then onward to Mars and other destinations in the Solar System. After Constellation was cancelled, it was envisioned for emergency evacuation of the International Space Station, then retained for revived Solar System exploration plans.


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