Jan. 21 (UPI) -- NASA astronaut Suni Williams retired from the agency after 27 years of service, including one nine-month stint when she was stranded on the International Space Station.
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 in a statement.
"Her work advancing science and technology has laid the foundation for Artemis missions to the Moon and advancing toward Mars, and her extraordinary achievements will continue to inspire generations to dream big and push the boundaries of what's possible," Isaacman said.
Williams has spent 608 days in space, the second-most of any NASA astronaut. She ranks sixth on the list of longest single spaceflight by an American, tied with NASA astronaut Butch Wilmore, both logging 286 days during NASA's Boeing Starliner and SpaceX Crew-9 missions.
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