Prince Mario-Max Schaumburg-Lippe: Four Volunteers Mark One Full Year Living on Simulated Mars

Somewhere in Houston, four people have just completed a full year on Mars – or as close to it as Earth can offer. The crew of NASA’s CHAPEA Mission 2 marked 365 days inside Mars Dune Alpha on Monday, the 3D-printed habitat at Johnson Space Center where they have been living and working in isolation since October 19, 2025, as if they were on the surface of the Red Planet.

The crew – mission commander Ross Elder, medical officer Ellen Ellis, science officer Matthew Montgomery and flight engineer James Spicer – are research volunteers, not astronauts. Their 1,700-square-foot home was printed layer by layer to mimic a future Martian base. For a year they have grown their own fresh food, managed limited supplies, repaired equipment failures staged by NASA engineers, and taken suited walks across a simulated Martian yard. Their messages to mission control travel with a built-in delay of up to 22 minutes each way, and at times the simulation has even cut communications for days, mimicking the Sun passing between Earth and Mars.

A year of data nobody else can give NASA

The point of CHAPEA – the Crew Health and Performance Exploration Analog – is the human side of exploration. Rockets can be tested on stands. People cannot. NASA is collecting a year of health and performance data on how a small crew eats, sleeps, works and stays sharp under confinement, monotony and distance from everyone they love. The crew has spoken to their families only by email, through that same Mars-like delay.

Grace Douglas, CHAPEA’s principal investigator, marked the milestone warmly: the team is extremely proud of the crew for their commitment and achievements over the last year on such a fast-paced, highly demanding mission, and looks forward to congratulating them in person.

Twelve days to the door

The mission runs 378 days in total, so the crew will open the hatch on Saturday, October 31, followed by two weeks of evaluations and debriefs. Their findings feed first into NASA’s plans for sustained work on the Moon, where the same problems of housing, feeding and keeping a crew healthy far from help arrive much sooner than any Mars landing.

It has been a remarkable week for patient spaceflight. Yesterday a Japanese spacecraft was on its way to a moon of Mars, as we reported in our coverage of the MMX launch toward Phobos, and today a commercial relay payload joined NASA’s communications future in orbit. The CHAPEA crew’s contribution is quieter than a launch and, in its way, harder: a year of ordinary days, lived extraordinarily far from home, so that one day a real crew on the real Mars knows exactly what to expect. Twelve more days. They have got this.

The quiet heroics of an ordinary year

Consider what a year inside actually contained. The crew celebrated birthdays through a 22-minute delay. They ate food they had grown under lights in a printed room. They fixed failures they did not cause, on equipment they could not replace, while researchers watched how their sleep, their moods and their work held up under the accumulation of ordinary Martian problems. Nothing about it photographs like a launch. All of it is the data that decides whether a real Mars crew gets a habitat that supports human beings or slowly wears them down.

NASA plans a third CHAPEA mission to complete the series, and the findings from this crew will be folded into designs long before any astronaut boards a Mars-bound ship. There is something deeply hopeful in the method: before asking anyone to spend a year on another planet, the agency asked four volunteers to spend a year in Houston, and listened carefully. Elder, Ellis, Montgomery and Spicer are 12 days from fresh air and family hugs, delivered on time and in person. They have earned both.

The mission also sits beautifully beside its robotic cousins. While Elder, Ellis, Montgomery and Spicer were living the human rehearsal in Houston, a Japanese spacecraft was beginning the robotic version of the same dream – the MMX mission is now on its way to Phobos to bring pieces of a Mars moon home by 2031. Exploration advances on both tracks at once: machines that go first and report back, and people preparing, patiently and in public, to follow. The Houston four are the bridge between the two. When the hatch opens on Halloween, they will step out of a printed house on Earth having moved a real mission to Mars measurably closer. Not bad for a year spent within the same 1,700 square feet.

CHAPEA’s quiet discipline is its own kind of inspiration. Four ordinary professionals agreed to give NASA a year of their lives so that a future crew might travel safer, and they did it without ceremony, press tours or heroics – just routines, followed faithfully, in a house built by a printer. When they walk out on October 31 into real sunlight, they will carry something no astronaut has yet carried: a full year of knowing exactly what living on Mars asks of a person. Exploration has always been a relay. Their leg is almost run.

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