BREAKING: NASA Evacuating Space Station Over Undisclosed Medical Condition - 1st Time in Station's History
NASA announced Thursday that it is carrying out the first medical evacuation of astronauts from the International Space Station, cutting a mission short in an unprecedented move driven by health concerns.
According to NBC News, four astronauts will return to Earth more than a month ahead of schedule after a medical issue arose involving one crew member. While NASA confirmed the astronaut’s condition is stable, the agency declined to provide further details about the nature of the incident or the individual affected.
“After discussions with Chief Health and Medical Officer Dr. JD Polk and leadership across the agency, I’ve come to the decision that it’s in the best interest of our astronauts to return Crew-11 ahead of their planned departure,” NASA Administrator Jared Isaacman said.
For the first time in the 25-year history of the International Space Station, we’ve had a serious enough medical emergency in space to bring a crew home early.
— Chris Hadfield (@Cmdr_Hadfield) January 8, 2026
Big decision by @nasa leadership, with multiple domino impacts on operations, but I’m glad to see, as always, crew… pic.twitter.com/p3ObJh497D
The crew scheduled to return in the coming days includes NASA astronauts Zena Cardman and Mike Fincke, Japanese astronaut Kimiya Yui, and Russian cosmonaut Oleg Platonov.
NASA officials emphasized that while the International Space Station is equipped with significant medical capabilities, it cannot fully replicate Earth-based emergency care.
“We have a very robust suite of medical hardware onboard the International Space Station, but we don’t have the complete amount of hardware that I would have in the emergency department, for example, to complete a workup of the patient,” Polk explained.
“And in this particular incident, the medical incident was sufficient enough that we were concerned about the astronaut that we would like to complete that workup,” he said.
Polk told The New York Times that limited onboard diagnostic capabilities leave unanswered questions that pose unacceptable risks.
WATCH: NASA is considering a rare early return of its crew from the International Space Station over an unspecified medical issue involving one of the astronauts. NASA canceled a planned spacewalk scheduled for January 8, the agency said https://t.co/HCPTPzk4Qk pic.twitter.com/j2d7hxIA5L
— Reuters Science News (@ReutersScience) January 8, 2026
“That means there’s some lingering risk for that astronaut on board. And so always, we err on the side of the astronaut’s health and welfare,” he said.
NASA had already signaled concern earlier in the week. On Wednesday, the agency abruptly canceled a scheduled spacewalk involving Cardman and Fincke, citing a medical issue but offering no additional explanation.
The returning crew includes some highly experienced astronauts. Fincke is completing his fourth mission to the space station, while Yui is on his second. Cardman and Platonov are both on their first spaceflight.
Several crew members have been involved in ongoing research examining the long-term health effects of extended and deep-space travel — studies that have become increasingly important as the United States looks toward future lunar and Mars missions.
NASA astronaut and Expedition 74 Commander Mike Fincke & Zena Cardman are pictured checking their communication & power systems ahead of a spacewalk planned for Thursday, Jan. 8. JAXA (Japan Aerospace Exploration Agency) astronaut & Flight Engineer Kimiya Yui assists the crew. pic.twitter.com/D5xKCNwf2m
— Cliff Lentz (@Spaceman101) January 6, 2026
As reported by CBS News, the four astronauts traveled to the space station aboard a SpaceX Crew Dragon spacecraft on August 1. Their return had originally been scheduled for February 20.
While NASA maintains that the situation is under control, the rare decision to evacuate astronauts early underscores the inherent risks of human spaceflight — and the agency’s willingness to prioritize astronaut safety over mission timelines.