NASA says it has a full-scale Blue Origin Mark 2 crew cabin prototype at Johnson Space Center to start human-in-the-loop training as Artemis milestones approach.
NASA is moving from spacecraft milestones to astronaut readiness, and this time the focus is a full-scale crew cabin prototype for Blue Origin’s next-generation moon lander.
After the success of its Artemis II crewed mission. NASA is now looking ahead to the next steps in its plan to put astronauts back on the Moon.. The space agency has been aiming for a lunar landing in 2028. and it has tapped Blue Origin and SpaceX to provide the landers that could carry humans to the surface.. Neither company has yet completed a moon landing. but NASA says the program is progressing in parallel across lander development and mission planning.
This week. NASA disclosed that it has received a full-scale prototype of the crew cabin portion of Blue Origin’s Mark 2 lander. bringing the hardware to NASA’s Johnson Space Center.. The prototype is intended to kick off training and evaluation work early. so astronauts and mission teams can practice key procedures before the full lander is ready.
At Johnson Space Center, NASA and Blue Origin will be able to run “human-in-the-loop” tests.. Those are scenarios designed around real people participating in the process. including mission-simulation activities and operational rehearsals rather than relying solely on automated systems.. NASA said the tests will cover mission scenarios, mission control communications, spacesuit checkouts, and preparations for simulated moonwalks.
The mock-up is limited to the crew cabin itself, which sits at the base of the lander.. NASA noted that the full vehicle would be much larger—about 52 feet tall once the rest of the lander systems are integrated for lunar operations—meaning this prototype is only one piece of a broader engineering and operational puzzle.
Still. this approach reflects the reality of lunar missions: landing smoothly on the Moon is difficult. and preparations require more than hardware readiness alone.. With NASA working to its current timetable for future Artemis flights. both Blue Origin and SpaceX face the challenge of turning designs into reliable landers capable of supporting safe surface operations.
Behind the scenes, Blue Origin has already been testing an uncrewed version of its lander.. That earlier system. called Endurance (also referred to as MK1). has been undergoing testing in NASA’s thermal vacuum chamber ahead of its first mission.. The purpose of that initial flight is to deliver science payloads to the lunar surface. which helps validate systems in relevant conditions before humans are involved.
For the next phase of the Artemis program. NASA is planning a crewed mission that does not yet attempt a full surface landing.. For Artemis III. the crew will fly in the Orion spacecraft to low Earth orbit and test docking capabilities with Blue Origin and SpaceX landers—or whichever lander is ready at the time.. NASA is targeting 2027 for Artemis III.
While the prototype work centers on the crew cabin. it also signals how NASA is managing risk across multiple fronts at once.. Human-in-the-loop testing can expose practical issues that pure engineering reviews might miss. such as workflow timing between astronauts and mission control. the readiness of spacesuit procedures. and how training translates into real operational decision-making.
It also underscores the importance of simulations as the program marches toward a 2028 lunar landing goal.. If lunar landings and surface operations are hard to execute. then building familiarity with communications routines. suit checks. and EVA-like rehearsals becomes a way to reduce uncertainty long before the spacecraft ever touches down.
For now. NASA’s Johnson Space Center prototype represents a concrete step in that direction: a large. crew-ready cabin model designed to bring together astronauts. suits. and mission operations in rehearsals while the larger lander systems continue to develop and face upcoming integration and flight milestones.
NASA Artemis Blue Origin Mark 2 crew moon lander lunar landing training human-in-the-loop tests Johnson Space Center