Orion is NASA’s flagship project for returning astronauts to the Moon and beyond. For missions to the Moon, Orion will carry up to four astronauts to low Earth orbit, where it will link up with a lunar surface access module for the trip to lunar orbit. The access module will descend to the Moon's surface while Orion orbits, awaiting its return. At the conclusion of the surface mission, the two vehicles will rendezvous and Orion will transport the astronauts back to Earth, where the capsule will re-enter the atmosphere and descend on parachutes.[1]
Source: NASA [2]
