They flew farther than any humans in history, troubleshot alarms 128,000 kilometres from home, and rode a capsule through the atmosphere at 35 times the speed of sound. Now safely back on solid ground, the Artemis II crew took the stage at the Johnson Space Center in Houston to debrief the world.
NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian Space Agency (CSA) astronaut Jeremy Hansen shared the raw realities of their 10-day lunar flyby, offering new insights into the Orion spacecraft’s performance and the profound psychological impact of returning to the Moon.
Commander Reid Wiseman opened the briefing by thanking the global workforce that built the Space Launch System and Orion spacecraft, as well as the international public for following the journey.
“We launched as friends, and we came back as best friends,” Wiseman said, highlighting the tight bond the crew maintained inside the capsule they named Integrity.
Thoughts from Jeremy Hansen and the other Artemis II crew members
CSA astronaut Jeremy Hansen fielded questions from Canadian media regarding the psychological impact of the mission. Hansen noted that viewing Earth from deep space did not fundamentally change his worldview, but rather strongly reinforced his existing beliefs.
“It hasn’t changed my worldview so much as it’s reinforced just the need for us to collaborate on this planet,” Hansen said. “Humans are just great people in general. We don’t always do great things… but our default is to be good and to be good to one another. What I’ve seen has brought me more joy, but more hope for our future.”
His crewmates alsp spoke of the psychological impact, each processing the sheer scale of the journey differently. Commander Reid Wiseman admitted that the magnitude of the flight hit him forcefully upon returning to the recovery ship, where he broke down in tears.
“It’s very hard to fully grasp what we just went through,” Wiseman said, recalling the moment they witnessed an orbital eclipse. “I don’t think humanity has evolved to the point of being able to comprehend what we were looking at right now, because it was otherworldly.”
Mission Specialist Christina Koch described experiencing a profound shift in perspective—often called the overview effect. Staring out at the three-dimensional depth of the cosmos, she recalled a stark “sense of fragility and feeling small, infinitesimally small, but yet this very powerful feeling as a human being, like as a group.”
Returning to that theme of unity, Hansen was asked what advice he would give to the next generation looking skyward. He emphasized the sheer power of community. “Don’t do it alone and share what you’re trying to accomplish with others. Share your goals, be brave enough to share them, and then you’ll be surprised how people surround you and lift you up.”
Hansen also offered pointed technical advice for the upcoming Artemis III crew. He urged future lunar astronauts to intimately learn the systems they might be forced to operate alone. “We spent a lot of time thinking about what if we don’t have Mission Control, and what are the critical things to keep us going long enough to get back in touch… I think that always needs to be an area of focus.”
Spacecraft handling and in-flight anomalies
The Artemis II crew reported that the Orion spacecraft performed exceptionally well, with Wiseman noting it handled “better than the simulator in all areas” during their initial rendezvous and proximity operations demonstration.
However, the 10-day test flight was not without its hardware challenges.
Wiseman detailed a tense moment on the second-to-last day of the flight when a smoke detector alarmed while the crew was still 128,700 kilometres (80,000 miles) miles from Earth. The alarm triggered an automated shutdown of the capsule’s ventilation and power systems. Following their training to use “no fast hands,” the crew remained calm, evaluated the machine’s telemetry, and safely reconfigured the systems with Mission Control.
The crew also addressed a widely discussed issue with the spacecraft’s waste management system. While the toilet itself functioned perfectly, the primary vent line—which expels liquid waste into the vacuum of space—became clogged after the first two days, forcing the crew to utilize operational workarounds for the remainder of the flight.
Regarding Orion’s heat shield, which is undergoing a comprehensive post-flight teardown following the ablation issues seen on the uncrewed Artemis I mission, the crew reported a smooth reentry. Wiseman explained that NASA opted for a modified, steeper reentry trajectory to limit the heat shield’s time in the atmosphere. Following splashdown, the astronauts visually inspected the heat shield in the well deck of the USS John P. Murtha and noted it looked “wonderful,” with only minor expected char loss near the shoulder of the cone.
Ready for the lunar surface
Despite the rigours of the mission, the Artemis II crew expressed supreme confidence in NASA’s readiness to execute a lunar landing.
Reflecting on the capabilities of the Orion spacecraft and the ground teams, Wiseman made it clear that the hardware and the astronaut corps are prepared for Artemis III.
“If you had given us the keys to the lander, we would have taken it down and landed on the Moon,” Wiseman said. “It is not the leap I thought it was. Once we’re around the Moon, we’re in the vacuum of space, we’ve got a vehicle that’s handling great… It’s going to be extremely technically challenging, but this team needs to show up every day knowing it is absolutely doable.”