In a report published Aug. 31, 2026, NASA said Expedition 75 astronauts Sophie Adenot of ESA and Jessica Meir of NASA were scheduled to begin a spacewalk on Tuesday, Sept. 1, after setting their spacesuits to battery power at 8:30 a.m. EDT. The two were planned to spend about six and a half hours outside the International Space Station replacing a spacecraft navigational aid, preparing a cosmic particle detector for future upgrades, installing jumper cables to boost data-relay systems and performing other tasks, the report said.

According to the report, the spacewalk would have been Meir’s seventh and Adenot’s third, and the 284th at the orbital outpost since 1998. NASA flight engineer Anil Menon was to operate the Canadarm2 robotic arm and guide Meir, attached by an articulating portable foot restraint, to worksites along the station’s starboard truss, while Adenot was to translate on her own while tethered. Jack Hathaway was to monitor the external activities, the report said.

The crew had finalized preparations on Monday, Aug. 31, the day of the report, including procedure reviews, spacesuit preparation and tool organization inside the Quest airlock. The station’s three cosmonauts focused that day on Roscosmos science and maintenance duties, including communications testing between the docked Progress 94 cargo craft and the TORU remote-control unit.