The Orion Crew Exploration Vehicle was originally part of NASA's Constellation Program which was cancelled in 2010. However, the design was carried forward as the Orion Multi-Purpose Crew Vehicle (Orion MPCV), as part of NASA's new plans for manned exploration to the Moon, Mars and asteroids.

The first test flight is in 2014.* For this particular mission, the capsule is unmanned. Nevertheless, it reaches a higher altitude than any spacecraft intended for human use since 1973. Orion makes two highly elliptical orbits of the Earth, before re-entering the atmosphere and splashing down in the Pacific Ocean.

This test supports the development of the Space Launch System – a new dedicated rocket, which itself will be tested in 2017. The first manned flight of Orion will occur in the 2020s, depending on Nasa's future funding.*


http://en.wikipedia.org/wiki/Exploration_Flight_Test_1

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