(L-R) NASA's Artemis II mission astronauts Canadian Space Agency's Jeremy Hansen, Christina Koch, Victor Glover and commander Reid Wiseman react during a welcoming ceremony at Ellington Field Joint Reserve Base in Houston, Texas, on April 11, 2026. An elated NASA late April 10 was celebrating its successful voyage around the Moon, after four astronauts safely returned to Earth having completed the first lunar flyby in more than 50 years. The NASA spacecraft carrying four astronauts -- three Americans and one Canadian -- splashed down without a hitch off the California coast, capping the US space agency's crewed test mission that returned with spectacular images of the Moon. (Photo by RONALDO SCHEMIDT / AFP via Getty Images)
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What a trip around the moon taught the Artemis II astronauts about life on Earth
The Lead

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2:34 • Source: CNN
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(L-R) NASA's Artemis II mission astronauts Canadian Space Agency's Jeremy Hansen, Christina Koch, Victor Glover and commander Reid Wiseman react during a welcoming ceremony at Ellington Field Joint Reserve Base in Houston, Texas, on April 11, 2026. An elated NASA late April 10 was celebrating its successful voyage around the Moon, after four astronauts safely returned to Earth having completed the first lunar flyby in more than 50 years. The NASA spacecraft carrying four astronauts -- three Americans and one Canadian -- splashed down without a hitch off the California coast, capping the US space agency's crewed test mission that returned with spectacular images of the Moon. (Photo by RONALDO SCHEMIDT / AFP via Getty Images)
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Off the coast of California, NASA’s Artemis Landing and Recovery team and the Department of War that will work together to retrieve the Artemis II crew and Orion spacecraft following their return to Earth and splashdown in the Pacific Ocean are performing a final simulation of their activities, called a just-in-time training, at sea on Tuesday, Jan. 27, 2026. During the training, teams use the Crew Module Test Article, a full-scale mockup of the Orion spacecraft, to simulate as close as possible the conditions they can expect to encounter during splashdown of the Artemis II mission. NASA’s first crewed test flight in the Artemis campaign, the approximately 10-day Artemis II mission will send NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen around the Moon and farther than any humans have ever been from Earth.
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