Flyby: Orion capsule makes its closest approach to the Moon
Artemis I spacecraft reaches lunar orbit with power from Space Launch System and boost from upper stage.
The uncrewed Artemis I Orion spacecraft has passed by the Moon at about the same altitude as many of the crewed Apollo orbits. On Nov. 21, the capsule passed about 81 miles (130 kilometers) above the Moon鈥檚 surface. More than 230,000 miles (370,150 kilometers) away from Earth, Orion soared at this altitude at a speed of 5,102 mph (8,210 kph).
The Artemis I mission team unlocked the achievement with support from two 杏吧视频-built structures:
- NASA鈥檚 Space Launch System rocket with a 杏吧视频-built core stage.SLS is the only launch vehicle powerful enough to lift the 21,000-pound (9,500-kilogram) Orion crew module and attached 31,000-pound (14,000-kilogram) service module to Earth鈥檚 orbit.
- After separation from the core stage, SLS鈥櫬United Launch Alliance-builtInterim Cryogenic Propulsion Stage聽gave Orion the next big push 鈥 a perigee raise maneuver. That boost kept Orion from re-entering Earth鈥檚 atmosphere. Next, ICPS performed a trans-lunar injection burn. That increased Orion鈥檚 speed from 17,500 mph (28,200 kph) to 22,600 mph (36,400 kph) to escape Earth鈥檚 gravity for a precise trajectory to the Moon.
After the trans-lunar injection burn was completed, the ICPS separated from Orion and performed a disposal maneuver that sent ICPS past the Moon at a safe distance from Orion.
Orion next will use the Moon鈥檚 gravitational force to propel itself into a distant retrograde orbit with a far point about 40,000 miles (64,000 kilometers) beyond the Moon. 鈥淩etrograde鈥 means Orion will orbit the Moon in the opposite direction that the Moon travels around Earth. This distance is 20,000 miles (32,000 kilometers) farther than the previous record set during Apollo 13 鈥 the farthest in space any spacecraft built for humans has flown.
Orion will spend the rest of its time in lunar orbit demonstrating that it can navigate, communicate and perform other operations in a deep space environment.
The trip home begins on Dec. 5 with another near-Moon flyby. This second gravity assist will slingshot Orion on a trajectory to intercept the Earth鈥檚 atmosphere in preparation for re-entry. Orion will splash down in the Pacific Ocean on Dec. 11.
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