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Muscle loss, medical tests and reunions: What really happens to Artemis II astronauts now?

After a historic journey beyond the Moon, the Artemis II astronauts are now undergoing medical checks, recovery and readjustment on Earth.

By Trisha Katyayan

Apr 11, 2026 08:34 IST

The four-member crew of NASA's Artemis II mission have safely returned to Earth after their historic journey beyond the Moon, splashing down off the coast of San Diego. Having travelled farther into space than any humans before, their focus now shifts from exploration to recovery, readjustment and life back on Earth.

Immediate medical checks and return to Houston

Soon after splashdown, Commander Reid Wiseman, along with Christina Koch, Victor Glover and Jeremy Hansen, are expected to undergo medical evaluations aboard the recovery ship. From there, they will be flown by helicopter to shore and then transported to NASA's Johnson Space Center for further assessment, reported BBC.

Even after a relatively short 10-day mission, time spent in microgravity takes a toll. Without Earth's gravity, muscles and bones begin to weaken, especially in the back, neck and calves. Astronauts follow strict exercise routines in space, but some loss is unavoidable. Studies show that muscle mass can drop by as much as 20 per cent in just two weeks.

Also Read | 'Textbook touchdown': Nasa's Artemis II makes history as astronauts splash down near San Diego

That said, the Artemis II crew's time in space is short compared to missions aboard the International Space Station, where astronauts often stay for five to six months. As a result, any physical effects are expected to be limited.

No dramatic 'space come-down'

Returning from space is not expected to bring emotional turbulence. Astronauts are trained to remain composed, and many describe spaceflight as a deeply rewarding experience rather than a disorienting one.

Before landing, Koch reflected on what she would miss most, the "teamwork and camaraderie" and the "common sense of purpose on the mission", BBC reported.

She also spoke about the perspective gained while orbiting far from Earth, saying, "Truly emphasised how alike we are, how the same thing keeps every single person on planet Earth alive."

Such reflections are common among astronauts, who often describe a renewed appreciation for Earth and humanity after seeing the planet from space.

Homecoming and family reunions

For the crew, one of the most anticipated moments is reuniting with loved ones. The risks involved in space travel, particularly during reentry and splashdown, make the return all the more meaningful.

Wiseman, who has been raising his two daughters since losing his wife in 2020, had prepared them for every possibility before the mission. Meanwhile, Hansen's family has been eagerly awaiting his return.

His wife, Catherine Hansen, shared their excitement, saying their children were "so, so excited to see their dad living his dream".

"We certainly will have a celebration... When Jeremy is back safely, we will absolutely come together. First just the five of us in a quiet environment to hear some of those private stories, and then we will absolutely celebrate with the world," BBC quoted her as saying.

Public attention and what lies ahead

Beyond recovery and family time, the astronauts are likely to step into the public spotlight. Artemis II has drawn global attention, and the crew return as widely recognised figures.

There are also future missions on the horizon. Artemis III and IV aim to take humans back to the Moon later this decade, and all four astronauts remain eligible for upcoming flights.

Also Read | Artemis II returns to Earth today: Here’s when and where to watch it live in India

An invitation from US President Donald Trump is also expected to be part of their post-mission schedule, said BBC. Speaking to the crew while they were still in space, he said, "I'll ask for your autograph, because I don't really ask for autographs much, but you deserve that."

He added that they would receive "a big salute on behalf of the American people and beyond that".

For now, though, the focus remains on recovery, reflection and a return to life on Earth after a journey that pushed human spaceflight further than ever before.

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