description Sunita Williams Overview
Sunita Williams is an American astronaut, engineer, and former United States Navy officer who served on several long-duration missions aboard the International Space Station. Her work in orbit included scientific operations, station maintenance, and spacewalks, and she has completed seven extravehicular activities. Williams is known for her experience in spacecraft operations and for contributing to both expedition missions and commercial crewflight activities.
help Sunita Williams FAQ
Which NASA missions did Sunita Williams fly?
Williams served on the International Space Station during Expeditions 14 and 15, later flew Expeditions 32 and 33, and returned to orbit aboard Boeing's Starliner Crew Flight Test in June 2024. She returned to Earth in March 2025 aboard SpaceX Crew-9. [NASA](https://www.nasa.gov/news-release/nasa-astronaut-suni-williams-retires/)
What did Sunita Williams do on the International Space Station?
Her work included scientific experiments, station maintenance, robotics, and spacewalks. During her later mission, she also served as commander of the ISS for part of Expedition 72. [NASA](https://www.nasa.gov/mission/expedition-72/)
Why was Sunita Williams aboard the ISS for so long after the Starliner launch?
Williams and Barry Wilmore launched on Boeing's Starliner in June 2024, but NASA decided the spacecraft should return without crew after reviewing propulsion and helium-leak issues. They instead returned on SpaceX Crew-9 in March 2025. [NASA](https://www.nasa.gov/news-release/nasa-astronaut-suni-williams-retires/)
Was Sunita Williams a military pilot before becoming an astronaut?
Yes, she was a United States Navy officer, naval aviator, and test pilot before joining NASA. Her engineering and flight-test background helped prepare her for long-duration ISS operations and spacecraft testing.
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