NASA has postponed a spacewalk outside the International Space Station (ISS) and is considering bringing back its crew early due to a medical issue that arose on Wednesday (Jan. 7) with one of the astronauts on board, the agency said.
The spacewalk was planned for 8 a.m. ET on Thursday (Jan. 8) to finish preparing a power channel where a new solar array is set to be installed on the ISS. American astronauts Mike Fincke and Zena Cardman were scheduled to exit the space station for 6.5 hours in what would have been Cardman’s first spacewalk. (Fincke has already performed nine spacewalks.)
“These are the situations NASA and our partners train for and prepare to execute safely,” a NASA spokesperson wrote in an email update on Thursday.
Nevertheless, the agency is considering bringing Fincke, Cardman and two other astronauts, who are part of the current four-person crew aboard the ISS, home early from their stay at the orbital outpost. “Safely conducting our missions is our highest priority, and we are actively evaluating all options, including the possibility of an earlier end to Crew-11’s mission,” the spokesperson said.
Crew-11 arrived at the ISS on Aug. 2, 2025. Fincke and Cardman were joined by Japan Aerospace Exploration Agency astronaut Kimiya Yui and Roscosmos cosmonaut Oleg Platonov for a six-month mission, after which the astronauts were set to be replaced by Crew-12 as part of the space station’s regular staffing rotation.
Crew-12’s launch is scheduled for mid-February. It is unclear what returning Crew-11 home early would mean for the ISS, as such changes to the usual rotation are highly unusual, but there are other astronauts living on the space station at the moment — including NASA’s Christopher Williams and Russian cosmonauts Sergey Kud-Sverchkov and Sergey Mikayev, who arrived at the orbiting lab aboard a Russian Soyuz spacecraft that destroyed its launching pad in November.
Further updates from NASA are expected in the coming hours.
