The
Orion Multi-Purpose Crew Vehicle (
Orion MPCV) is an American
spacecraft intended to carry a crew of four astronauts to destinations at or beyond
low Earth orbit (LEO). Currently under development by
NASA for launch on the
Space Launch System, Orion is intended to facilitate human exploration of
asteroids and of
Mars, as well as to provide a means of delivering or retrieving crew or supplies from the
ISS if needed.