We didn't do it—and that decision saved the mission.
Astronauts compared Earth reentry to a thrilling roller coaster, experiencing plasma colors and intense G-forces before splashing down in the Pacific Ocean. The crew faced a critical fuel leak alarm mid-mission but decided against executing emergency procedures after rapid analysis, demonstrating the importance of training and teamwork.
- Artemis II crew splashed down in Pacific Ocean off San Diego on April 10, 2026
- Four astronauts: Jeremy Hansen, Christina Koch, Reid Wiseman, Victor Glover
- Mission traveled nearly 700,000 miles; crew saw moon's far side with naked eye
- Fuel leak alarm woke crew mid-mission; they chose not to execute shutdown procedures
- Koch previously spent 328 days on International Space Station in 2019-20
Artemis II astronauts described their historic moon mission as exhilarating during a CBS town hall with students, sharing details about reentry, microgravity, and critical in-flight decisions that required teamwork.
Four astronauts sat down with a room full of students on a Friday morning to talk about what it felt like to come home from the moon. Jeremy Hansen, Christina Koch, Reid Wiseman, and Victor Glover had splashed down in the Pacific Ocean off San Diego just weeks earlier, on April 10, after traveling nearly 700,000 miles and becoming the first humans to see parts of the moon's far side with their own eyes. Now they were trying to put into words what that journey had been like.
Hansen reached for a comparison that seemed to land with the young audience: the reentry was like the best roller coaster ride in town. He described the moment the capsule hit the atmosphere—the plasma building outside the windows, colors shifting from red to blue to green, the whole thing like someone welding metal. The spacecraft got thrown around hard. G-forces pinned the crew to their seats. "It's just all really exhilarating," he said. When the Orion capsule finally splashed down, Hansen and Koch fist-bumped each other. Koch called it phenomenal, said she was completely overcome with elation.
But the mission had its tense moments too. Wiseman told the students about a night when an alarm woke all four of them from their sleeping bags. A "run box warning" flashed on the display—fuel was leaking from the spacecraft. The crew had procedures they were supposed to execute immediately. Hansen woke up, floated over to the control system, and started configuring the propellant system to shut down the fuel lines and preserve what they had left. But as they watched, the alarm kept coming and going, which was strange. Normally it would stay lit continuously. The team talked through it rapidly and made a decision: they would not execute the emergency procedures. If they did, it would shut down their entire fuel system. "We didn't do it," Wiseman said. The decision required trust in their training and in each other.
When a student asked what Hansen missed most about gravity, he couldn't think of anything. Microgravity, he said, was so much fun that nothing on Earth compared to it—even if chores and using the restroom were harder up there. Koch, who had spent 328 days on the International Space Station in 2019-20, described what it felt like to readjust to gravity after nine days in space. Your body gets used to orienting without it, she explained. Walking again took a little while. But this time, it wasn't too bad.
The astronauts made clear that the mission was not theirs alone. Koch said the real heroes were the teams in mission control and everyone on the ground who had worked for years to make it happen. "Teamwork is 100% everything," she said. When they saw the most amazing things in the universe—like watching a solar eclipse in deep space when the moon moved between the Orion and the sun, creating a ghostly glow around the lunar horizon—it humbled them and made them realize they were nothing without each other.
There was a lighter moment too. Wiseman told the students about what happened right after splashdown, while they waited for rescue crews to open the hatch. Christina pulled something out of her spacesuit pocket: peanut M&Ms. The four of them leaned against the side of the spacecraft, just back from the moon, eating candy and being happy.
A five-year-old named Jack from Atlanta, who had gone viral for his enthusiasm watching the launch in Florida, was there too. The astronauts gave him a NASA spacesuit that matched the ones they had worn. The town hall also featured Ron Howard, the director of "Apollo 13," and Bill Nye, who demonstrated science experiments. Hansen shared that he had watched "Apollo 13" again before his astronaut interviews, letting that film guide him. "It's not that we never fail," he said. "It's that we don't stop there."
Notable Quotes
Teamwork is 100% everything. We learned when we saw the most amazing things in the universe, they humbled us. They made us realize that we are nothing without each other.— Christina Koch, mission specialist
It's not that we never fail, it's that we don't stop there. We fail over and over again, but we don't stop when we fail.— Jeremy Hansen, astronaut
The Hearth Conversation Another angle on the story
When you describe reentry as a roller coaster, are you talking about the fear, or the thrill, or something else entirely?
Both, honestly. There's real danger in it—you're moving at thousands of miles per hour and the physics is unforgiving. But you've trained for it, you trust your team, and when it actually happens, you're so present in the moment that fear and exhilaration become the same thing.
That fuel leak alarm in the middle of the night—how do you stay calm when something like that happens?
You don't stay calm, not really. Your heart rate goes up. But you have procedures, and you have each other. The moment Hansen woke up and said we need to execute emergency response, everyone shifted into that mode. The training takes over. And then you talk through it together, which is what saved us.
Why did you decide not to execute the procedures, even though the alarm was telling you to?
Because the alarm was behaving strangely. It kept coming and going instead of staying lit. That inconsistency told us something was wrong with the warning itself, not necessarily the fuel system. If we'd shut down the whole system, we might have made things worse. You have to think, not just react.
What surprised you most about coming back to gravity?
How quickly your body adapts in both directions. You get used to floating in nine days. Then you come back and your inner ear is confused, your legs feel heavy, walking is weird. But it comes back fast too. A week or two and you're fine.
You said teamwork is 100% everything. Does that include the people who never left Earth?
Absolutely. The people in mission control, the engineers who built the spacecraft, the people who trained us for years—they're as much a part of this as we are. We're just the ones who get to see the moon. They're the ones who made it possible.