The Orion Multi-Purpose Crew Vehicle (MPCV) is a spacecraft intended to carry a crew of up to 4 astronauts to destinations beyond-low Earth orbit (LEO). Currently under development by NASA for launch on the Space Launch System, Orion will facilitate human exploration of the Moon, asteroids and Mars.
The MPCV was announced by NASA on May 24, 2011. Its design is based on the Orion Crew Exploration Vehicle from the cancelled Constellation program. The Orion command module is being built by Lockheed Martin. The Orion service module, provided by the European Space Agency, is being built by Airbus Defence and Space.
The MPCV’s debut unmanned test flight, known as Exploration Flight Test 1 (EFT-1), was launched aboard a Delta IV Heavy rocket on December 5, 2014. (It was originally December 4, 2014. But was delayed because of technical problems.) The first manned mission is expected to take place after 2020.