NASA's Orion spacecraft has arrived at the Moon, and swung around the far side, as it prepares to settle into an orbit around Earth's biggest satellite that will take it further from home than any (eventually) manned spacecraft before it.Orion used its orbital maneuvering engine for two and a half minutes to accelerate around the moon for a gravitational assist NASA called the "outbound powered flyby burn," the first of two maneuvers the capsule will need to make to get into a distant retrograde orbit, or DRO.
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