Washington DC, Jan. 21 -- NASA astronaut Suni Williams has retired after 27 years of service, effective December 27, 2025.

With a remarkable career spanning three missions aboard the International Space Station, Williams has set numerous human spaceflight records, including logging 608 days in space, the second-most cumulative time by a NASA astronaut.

"Suni Williams has been a trailblazer in human spaceflight, shaping the future of exploration through her leadership aboard the space station and paving the way for commercial missions to low Earth orbit," said NASA Administrator Jared Isaacman. "Her work advancing science and technology has laid the foundation for Artemis missions to the Moon and advancing toward Mars, and her extraordin...