NASA astronaut Anil Menon and CSA (Canadian Space Agency) astronaut Joshua Kutryk were preparing to install and deploy an International Space Station Roll-Out Solar Array (IROSA) on the 2A electrical power channel, NASA reported on October 29, 2026. The agency said the array would be the seventh IROSA and would provide additional power to support critical station operations, including its safe and controlled deorbit.

The spacewalk, designated U.S. spacewalk 100, was scheduled to begin at approximately 8 a.m. EDT and last more than six and a half hours, with the astronauts exiting the station's Quest airlock. Menon was assigned as crew member 1 in a suit with red stripes, and Kutryk as crew member 2 in an unmarked suit. According to NASA, it would be Menon's fourth spacewalk and Kutryk's first, and the excursion would mark the 285th spacewalk supporting space station assembly, maintenance and upgrades.

NASA also said it was streaming live coverage of the preparations.