Trailblazing NASA Astronaut Sunita Williams Retires After 27 Years of Service

NASA astronaut Sunita Williams has retired after a stellar 27-year career, effective December 27, 2025. During her tenure, she completed three missions aboard the International Space Station (ISS), logging a record 608 days in space and setting numerous human spaceflight records.

Williams, 60, is a trailblazer in human spaceflight, having shaped the future of exploration through her leadership aboard the space station and paving the way for commercial missions to low Earth orbit. She holds the record for most spacewalking time by a woman, with 62 hours and 6 minutes across nine excursions.

Her most recent mission, launched in June 2024, was initially intended to last eight days but was extended to over nine months due to technical issues with the Boeing Starliner spacecraft. Williams returned to Earth in March 2025 as part of the SpaceX Crew-9 mission.