Sophie Adenot has returned to Europe after 237 days, 5 hours, and 18 minutes spent in space. The ESA astronaut, who returned to Earth with the Crew-12 crew on 8 October, landed at 06:21 on 10 October in Cologne, Germany, home to the European Space Agency’s European Astronaut Centre. This brings εpsilon to a close—her first mission to the International Space Station and, by duration, a major milestone in the history of European human exploration.
The most immediate takeaway is the new record: εpsilon is the longest single spaceflight ever completed by a European astronaut. Adenot surpassed by more than 35 days the previous record held by Italian astronaut Luca Parmitano with the Beyond mission. Crew-12 also enters SpaceX’s operational record books: its 237 days in orbit make the expedition the longest to date carried out with a Dragon capsule, surpassing the previous benchmark of 235 days set by Crew-8.
The extended stay is not merely a statistic. It increases the time available for microgravity research, onboard systems maintenance, and testing how technologies and procedures perform during increasingly extended missions. It is also an indicator of Europe’s ability to carve out continuity and responsibility within the ISS programme, even while operating in an international framework where crewed transport currently depends on US infrastructure.
The return of Crew-12 and the homecoming to Cologne
Adenot had departed the International Space Station on 7 October alongside NASA astronauts Jessica Meir and Jack Hathaway and Roscosmos cosmonaut Andrei Fedyaev. Undocking took place at 12:05 GMT; the journey home lasted 27 hours and 29 minutes. The capsule completed splashdown on 8 October at 15:34 GMT, ahead of initial medical checks aboard the recovery vessel.
Following a helicopter transfer to the coast, the four crew members reached Houston’s Ellington Field aboard a NASA aircraft for initial post-flight activities. For Adenot, the journey continued on 9 October aboard a French Air and Space Force Airbus A330 MRTT Phénix bound for Germany. Welcoming her on the tarmac in Cologne were family members, colleagues, representatives of ESA member states, journalists, and friends.
However, returning home does not mean an immediate resumption of ordinary life. The body adapts to microgravity over a long period and must readjust to Earth's gravity, balance, coordination, and physical loads. Adenot will spend the next two to three weeks at :envihab, the German aerospace center DLR facility located next to the European Astronaut Centre. Here, data will be gathered for the medical and scientific evaluation of the recovery phase. Rehabilitation and follow-up activities with the EAC training team will follow.
Three extravehicular activities and a French milestone
During εpsilon, Adenot became the first French female astronaut to conduct an extravehicular activity, the so-called EVA or spacewalk. She is the second European woman, after Samantha Cristoforetti, to have worked outside the ISS. In just 14 days, she completed three EVAs, totaling 19 hours and 42 minutes in the vacuum of space.
Extravehicular activities remain among the most demanding tasks assigned to an orbital crew: they require specialized training, highly precise planning, and constant coordination with mission control. They are not an incidental part of the program: they are essential for working on the station's external infrastructure and ensuring the outpost continues to operate. Adenot's achievement holds special significance for France as well, which with εpsilon sees one of its astronauts enter this operational domain for the first time.
Her presence on board also carried weight on the broader level of European representation. ESA astronaut missions are built on national contributions and international cooperation, but the ability to entrust an astronaut with scientific, technical, and operational tasks of this complexity remains central to retaining a meaningful role in decisions regarding human space exploration.
Research, Columbus and technologies to be tested in orbit
The mission's schedule spanned diverse disciplines: health, biology, materials science, fluid physics, radiation physics, and fundamental research. Adenot worked for approximately 218 hours on 35 European payloads and dedicated around 25 hours to the maintenance or upgrades of ESA systems inside Columbus, the ISS European laboratory. The agency also noted that the mission-specific experiments proposed by CNES, the French space agency, and the ESA experiments assigned to the astronaut were completed.
The technologies tested included E4D, a new European exercise device, and metal 3D printing in orbit. These are two distinct research tracks united by the need to make crews less dependent on supplies and solutions devised exclusively from Earth. Exercise is an essential element during long stays, as microgravity alters muscles and bones; metal additive manufacturing, on the other hand, is being studied with a forward-looking perspective to determine whether it could one day help produce or repair components far from the planet.
These tests do not warrant considering the challenges of deep-space logistics solved. The ISS is a low-Earth orbit laboratory, with communications, ground support, and regular resupply missions. However, verifying materials, procedures, and tools in real conditions is an indispensable step before considering applications on missions with much narrower operational margins. The work on commercial payloads conducted during εpsilon also aligns with the station's progressive opening to entities and research programs beyond public agencies alone.
A signal for Europe's next phase
Adenot's return comes as ESA prepares for the intermediate Ministerial Council scheduled in Rome this December. There, member states will discuss priorities and funding for the agency's programs. Director General Josef Aschbacher explicitly linked the outcome of εpsilon to the ambition of securing Europe a role in exploration proportionate to its political and economic weight.
The statement outlines a direction, not an established outcome. European continuity in crewed spaceflight will depend on government decisions, partner agreements, and the evolution of the program after the ISS. But a long mission, with a completed research workload, three spacewalks, and operational expertise gained in orbit, provides Europe with a tangible asset to bring to the table for future decisions.
For Adenot, the less visible but equally important phase of the return now begins: physical recovery, sample and data analysis, and technical debriefing. For ESA, CNES, and DLR, meanwhile, a phase opens in which the results gathered during and after εpsilon must be transformed into actionable knowledge for upcoming missions. The duration record remains a symbol, but its usefulness will depend primarily on what is learned over the coming months.
