NASA's Artemis II Completes Crewed Lunar Orbit Test with Pacific Ocean Splashdown

By [Neutral Rewrite Editor]

NASA's Artemis II mission concluded with the Orion spacecraft splashing down in the Pacific Ocean off the coast of San Diego on April 11, 2026, marking the first crewed flight around the moon since Apollo 17 in 1972. The four-person crew returned safely after a 10-day mission that tested the spacecraft's systems for future lunar landings.

The Artemis program, aimed at returning humans to the moon and establishing a long-term presence, has experienced multiple delays and cost overruns. Development of the Space Launch System rocket and Orion spacecraft has exceeded $44 billion, surpassing initial estimates, with Artemis II postponed several times from its original 2024 target due to technical issues including heat shield concerns and software problems.

The crew—commander Reid Wiseman, pilot Victor Glover, mission specialist Christina Koch, and mission specialist Jeremy Hansen from the Canadian Space Agency—conducted the first crewed observations of portions of the moon's far side, areas previously imaged by uncrewed orbiters and probes such as NASA's Lunar Reconnaissance Orbiter and China's Chang'e missions. The mission also included observations of Earth and other planets from lunar distance and set distance records for crewed spacecraft beyond low Earth orbit.

After splashdown, the astronauts emerged from the capsule onto an inflatable raft in daylight conditions. U.S. Navy helicopters from the recovery ship USS John P. Murtha lifted each crew member individually to the vessel. NASA Administrator Jared Isaacman, speaking from the recovery ship, described the crew as representatives sent on the mission.

Mission Control at NASA's Johnson Space Center in Houston saw personnel from support rooms join in applause following confirmation of the splashdown. Lori Glaze, director of NASA's Planetary Science Division, stated during a post-splashdown news conference, "We did it."

The Orion spacecraft executed an automated re-entry, striking Earth's atmosphere at approximately Mach 33—33 times the speed of sound—the highest velocity for a crewed vehicle since the Apollo program. During peak heating, the capsule entered a planned communication blackout lasting about six minutes as it was surrounded by plasma, with the heat shield protecting it from temperatures exceeding several thousand degrees Fahrenheit. Telemetry confirmed the heat shield's performance as designed.

Families of the astronauts watched the re-entry from a viewing room at Mission Control, approximately 2,000 miles from the splashdown site, cheering upon reacquisition of signal and splashdown confirmation.

The Orion spacecraft carrying the Artemis II crew approaches the Pacific Ocean surface off the California coast. [Bill Ingalls/NASA via AP Photo]

The Artemis II Orion capsule splashes down in the Pacific Ocean. [NASA via AP Photo]

U.S. Navy divers prepare to deploy from the well deck of USS John P. Murtha to assist in recovering the Artemis II crew. [Bill Ingalls/NASA via AP Photo]

Recovery teams secure the Orion spacecraft after splashdown off the California coast. [Joel Kowsky/NASA via AP Photo]

Spectators gather along the beach in Coronado, California, to observe the Artemis II return. [Gregory Bull/AP Photo]

Artemis II pilot Victor Glover walks on the flight deck of USS John P. Murtha after extraction from the Orion spacecraft. [Bill Ingalls/NASA via AP Photo]

Canadian Space Agency astronaut Jeremy Hansen sits in a Navy MH-60 Seahawk helicopter on the flight deck of USS John P. Murtha following splashdown. [Bill Ingalls/NASA via AP Photo]

Astronauts Victor Glover and Christina Koch sit in a Navy MH-60 Seahawk on the flight deck of USS John P. Murtha after splashdown. [Bill Ingalls/NASA via AP Photo]

Artemis II commander Reid Wiseman receives assistance on the flight deck of USS John P. Murtha. [Bill Ingalls/NASA via AP Photo]

Crowds at the Air and Space Museum in San Diego watch the Orion capsule splashdown off San Diego's coast. [Arafat Barbakh/Reuters]

Crew members on the International Space Station, including NASA astronauts Chris Williams, Jack Hathaway, and Jessica Meir, along with European Space Agency astronaut Sophie Adenot, observed the re-entry from the station's cupola window on April 10, 2026. [Jessica Meir via X/Handout via Reuters]

The mission paves the way for Artemis III, targeting a crewed lunar landing no earlier than 2028, according to current NASA schedules, with plans for a lunar Gateway station and surface base in subsequent years. All systems performed as planned during the test flight, which launched on March 31, 2026, aboard the Space Launch System from Kennedy Space Center.

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