Science

Artemis II astronauts splash down off San Diego after lunar loop

There was that moment when you could almost feel the heat—except it was happening on a spacecraft far above the Pacific. After a nearly 10-day journey that carried Artemis II astronauts around the moon, through an eclipse, and farther away from Earth than any humans before them, the crew of four finally made its way home.

At 8:07 p.m. EDT Friday, NASA astronauts Reid Wiseman, Victor Glover and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen, dropped into the Pacific Ocean off the coast of San Diego inside the Orion space capsule. The USS John P. Murtha was stationed near the splashdown zone, positioned for recovery and, presumably, a whole lot of careful waiting.

Reentry was never going to be gentle. To come back, the Orion capsule had to handle predicted temperatures of about 5,000 degrees Fahrenheit and slow down from nearly 25,000 miles per hour—more than 30 times the speed of sound—to roughly 19 mph or so before splashdown. It’s hard to picture those numbers together, but that’s the point: physics, in its most blunt form.

The roughly 13-minute plunge from the top of the atmosphere to the surface is, as Victor Glover described it, like “riding a fireball through the atmosphere.” He also framed it as something the team had to do, even if it sounds almost too intense to be real—because it is. “We have to get back,” Glover said. “There’s so much data that you’ve seen already, but all the good stuff is coming back with us.”

Before the splashdown, the mission’s crew spent time looping around the far side of the moon on Monday April 6, taking photos and making observations while they passed over the lunar surface. Now the question shifts from survival and descent to what comes next: the data and additional material the crew will bring back to the team on the ground.

There’s always a strange split-second contrast with missions like this. The capsule hits the water, and suddenly the mission stops feeling like an endless arc and starts feeling like a brief, intense incident—like the smell of salt and fuel in the recovery area, if you were anywhere near it. For Artemis II, though, that “home” moment is only the end of the journey itself. The real story, the one that will unfold in labs and mission rooms, is still inside the measurements and recordings the astronauts carried with them.

The crew is now set to bring that data and more back to the team on the ground, turning a dramatic return into a long stretch of analysis—probably slow, detailed, and at times almost boring. But that’s where the discoveries tend to hide.

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