What happens next?published at 19:57 BST
Pallab Ghosh
Science correspondent
It takes about four days to cruise out to the Moon.
At its furthest, the spacecraft's trajectory takes the crew to around 230,000 miles from Earth, looping them behind the far side of the Moon.
After the flyby, Orion makes a series of gentle course correction burns to line up its path for the return to Earth.
Roughly four days later, Orion separates from the European Service Module and heads for home.
The capsule slams into the upper atmosphere at high speed, its heatshield glowing white hot as it sheds the energy of the trip.
Parachutes then unfurl, slowing the spacecraft for splashdown in the Pacific Ocean, where US Navy ships will be waiting to fish the crew and their capsule out of the water.








