Sunita Williams Retires After Historic 608 Days in Space
Indian-American astronaut Sunita Williams has retired from NASA, concluding a trailblazing career during which she spent a record 608 days in space.
Key Takeaways
- Sunita Williams retires with 608 cumulative days in space.
- She holds the record for most spacewalk time by a woman (50 hours, 40 minutes).
- Williams was the first person to run a marathon in space (Boston, 2007).
- Her career spanned two Space Shuttle missions and two ISS expeditions.
A Record-Setting Career
Williams, 58, set multiple benchmarks during her tenure. Her 50 hours and 40 minutes of spacewalk time across seven outings remains the highest for any female astronaut. This record stood until fellow NASA astronaut Peggy Whitson surpassed it in 2017.
NASA Leadership’s Tribute
NASA Administrator Bill Nelson celebrated her legacy on social media. “Sunita Williams has been a trailblazer for women in space exploration,” he posted on X. “Her record-breaking career has inspired countless young people to pursue careers in science and engineering.”
From Selection to Space Station
Selected as an astronaut in 1998, Williams flew on Space Shuttle missions STS-116 and STS-132. She later served as a flight engineer on the International Space Station (ISS) during Expeditions 14 and 15.
Her ISS tenure was marked by significant scientific work and a unique athletic feat. In 2007, she became the first person to complete a marathon in space, running the Boston Marathon on a station treadmill.
Retirement During a New Space Era
Williams steps down as NASA focuses on its Artemis program to return humans to the Moon and prepare for future Mars missions using the new Space Launch System and Orion spacecraft.
A Legacy of Honors
Her contributions have been recognized with top honors, including the NASA Distinguished Service Medal and the Congressional Space Medal of Honor. She is also an inductee of the U.S. Astronaut Hall of Fame.




