A column about curious stories from the world of technology. Today — about four volunteers, a 3D-printed box in a Houston hangar, and the most underrated research in human spaceflight: what happens to people who've been locked in a habitat for 378 days and asked to pretend they're living on another planet.
On November 9, NASA released a major feature following an event from nine days earlier: on October 31, 2026, the crew of CHAPEA-2 mission — Ross Elder, Ellen Ellis, James Spicer, and Matthew Montgomery — opened the door and walked out of Mars Dune Alpha, a habitat module the size of a decent four-bedroom apartment, where they'd lived for 378 consecutive days. The four had entered on October 19, 2025, with the formula "see you in a year." Not a single window during that time, not a single sound from the street, not a single live call to family: just three roommates and communications that, per the mission scenario, took up to 22 minutes one-way to reach Earth. At the door they were met by cameras, families, and astronaut Jack Hathaway — a man who during that same year had managed to fly to the ISS, spend 237 days there, and return. While the four were pretending to be Martians, the rest of humanity had also sent Artemis II around the Moon with the record for "farthest humans from Earth in history," and quietly celebrated 25 years of continuous human presence in orbit. Hathaway, looking at the volunteers, put it without the usual officialese: "The reality of what you guys did here required immense physiological and psychological strength, teamwork, and human grit."
CHAPEA stands for Crew Health and Performance Exploration Analog, and that's an important qualifier: this is not a tech demo and not a dress rehearsal for flight. What we have here is pure human research — a study of "how the crew survives," where every drop of water and every packet of freeze-dried noodles is designed around the resource constraints of an actual Mars mission. The program is monumental and very much in NASA's style: three year-long missions. The first ran from June 25, 2023, to July 6, 2024, the second just reported in, the third is yet to come. The "Mars" itself is 1,700 square feet, about 157 square meters, 3D-printed by construction printer from ICON right in a Johnson Space Center hangar. Outside, a sandbox with red soil and Mars landscape props adjoins the module: there the crew in training spacesuits practices "surface walks," while also remotely operating a drone and rover that remain "on the surface" between excursions.
Selection was meticulous to the point of obsession: volunteers, ages 30 to 55, U.S. citizenship or permanent residency, STEM degree or flight training, physical fitness meeting long-duration mission standards — and the selection was done by the same team that usually screens astronauts. Grace Douglas, the project's principal investigator, explains this in purely technical terms: they need astronaut-like data from subjects who've already been filtered at intake like astronauts. No "let's stick a bank clerk in a jar and have a laugh" — the most honest possible experiment on the best of the qualified.
Mission design is where NASA shows that the existential hides in the details. First: communication delay. Real Mars bounces signals 3–23 minutes one-way depending on orbital geometry, so all year they corresponded only by letters, and any "calls" physically didn't exist. Second: resources. Food doesn't replenish, water is consumed according to schedules, and in mission-2 literally everything went into the reports — James Spicer: "every sip of water, every shake of the salt shaker goes to NASA," to correlate input with output performance. Third, my favorite part: ground control injects equipment failures into the module on a schedule. A house over a year teaches you plumbing, electrical work, and just being a person with needle and thread — crew-2 during the mission really did clear a clogged drain with a cable and mended their own flight suit.
In early October, two months before exit, the crew recorded a final audio log on the Houston We Have a Podcast — gold for anyone who wants to touch the daily life of a year-long "Mars." First surprise — food, but not at all as you'd expect: not "bland and dreary," but "we physically don't have enough meals." The calorie quota from training and surface walks is so high that three steps aren't enough: Matthew Montgomery seriously talks about second breakfast and elevenses between official meal blocks, because "loading calories" is a production task. Ross Elder adds: the day is scheduled so tightly that it's hard to find time to eat — hence the persistent statistic that astronauts on long-duration flights lose weight.
Second surprise — silence. Habitat continuously hums with fans, that's where the sonic picture of the world ends: no weather, no streets, no crowds. Elder admits he misses the sound of weather and city noise so much that he walks around with an earbud in one ear — just so something's playing. Montgomery is already preparing for the return to the city to be deafening. Third detail: daily toolkit, no romance — wrenches, drills, cable for the drain, metal detector, needle and thread. The key conclusion from Montgomery and company: almost every "Marswalk" is at least partly construction, and for the future they need to plan for far more frequent excursions than it seemed on paper.
A separate genre — medical self-sufficiency. The crew took a crash course in phlebotomy and spent a year drawing blood from their own veins; medical acquaintances, hearing this, are horrified: "we don't even do that to ourselves." Plus practice with an ultrasound probe and testing medical gadgets for future Martians who won't have either a doctor in real time or emergency evacuation. Ellen Ellis — mission medical officer, Space Force officer with a background at the National Reconnaissance Office — describes this as a question of precise language: without real-time communication, self-diagnosis turns into literature, you're obligated to describe symptoms so that a doctor on Earth couldn't ask a single clarifying question that would travel back 22 minutes.
The first crew exited on July 6, 2024, to applause: commander Kelly Haston, a Canadian stem cell researcher from the Mohawk nation, medic Nathan Jones, structural engineer Ross Brockwell, and Navy microbiologist Anca Selariu. The first meal after a year of dehydration was a classic: Brockwell got a cheeseburger — he'd dreamed of seafood, of course, but Houston's not great for that. His first impressions mirror the second crew: just standing in the sun, feeling wind, seeing the horizon — bliss. He also left the most constructive takeaway: "it turned out that all you need in life is relatively simple: basic nutrition, basic physical activity, and connection to the systems that sustain you."
Selariu, to my taste, gave the deepest comment of the entire project: the hardest thing turned out not to be daily life or loneliness, but communication delay. "It's a unique challenge for modern people. Most people now simply don't know what it's like to live offline." NASA designed a Mars simulation and got as a bonus the most expensive digital detox experiment in history.
Haston had a weightier observation: over the year an "odd family unit" formed — strange but real shared household with communal dinners, birthdays, mutual haircuts and board games. Behind this lies a cost too: "My family experienced deep sorrows, and loss," she said after exit, declining details but not the substance. Her final verdict on "real" Mars is brutally honest: before the experiment she'd have raised her hand without thinking, after — "unlikely. Three years of separation from my loved ones is a very long time." For context: an entire real Mars expedition with waiting for launch windows — on the order of three years.
The real answer is in Grace Douglas's phrase, which should be hung in every product presentation: "Here's this mass, this energy, this volume — and you have to decide what to cut." Planners will be slashing resources not even relative to "station on Mars" but relative to ISS: on the transition without hot water, possibly without heating food, with minimal equipment and strict mass limits. That's exactly why the research branches into everything at once: food and agriculture, psychology, physical training, medicine, communications protocols, robotics — because in a real flight it's all tied to the same budget of grams and watts. Two completed year-long cohorts give NASA what one couldn't: the ability to distinguish crew patterns from individual personality — repeatability of scenarios here is fundamental. The third crew is preparing; in parallel the same module awaits the Moon to Mars Exploration Analog program — NASA initially printed it modular precisely for future reconfigurations. The box in the hangar isn't a prop for a press release, but a long-lived test stand.
My favorite moment of the final audio log is domestic: Ross Elder admitted that over the year he'd forgotten what cheese tastes like. Spicer delivered a technical definition — "it's like milk, if you leave it out, then mix it with a cow's stomach," — and Elder didn't catch the joke and earnestly clarified: "what's milk?" Four adult professionals, simulating a Mars expedition for a year and a half by NASA procedures, collectively miss avocados, Thai food, and the grocery section with its smells. Spicer separately worries that he hasn't driven for a year and will have to quickly remember how to operate a car; Elder seriously practices chair-flying — mentally piloting a plane in preparation for return, and exit day, by his account, coincides with an air show in Houston, which he convinced the crew to consider a celebration in their honor.
More broadly — the finale of this story suggests one uncomfortable thought. NASA cut people off from windows, notifications, and social media for a year, and the only crew member from the first mission who really enjoyed it was Spicer: he was surprised how little he missed the news, and chalked it up to focus. Haston after exit became more cautious about "real" Mars, Selariu dreams again, Brockwell would sign up without hesitation. But they all converge on one point: the most unexpected result isn't about Mars, but about Earth, which turned out to be just 22 minutes and one doorway away.
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