Veteran astronaut Sunita Williams retires after 27 years
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Washington — NASA announced Tuesday that veteran astronaut Sunita 'Suni' Williams retired effective December 27, 2025, after 27 years at the agency. Williams completed three International Space Station missions, logging 608 cumulative days in space and conducting nine spacewalks, including a 286-day single flight during Crew‑9/Starliner operations. NASA credited her leadership in advancing science, commercial low‑Earth‑orbit missions and preparations for Artemis lunar efforts. Williams also served in NEEMO underwater missions and as Deputy Chief of the Astronaut Office. The agency released statements praising her service and records, noting influence on future exploration programs. Based on 6 articles reviewed and supporting research.
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Timeline
- 1. 1998 — Williams joins NASA as an astronaut candidate.
- 2. 2002 — Participates in NEEMO underwater mission for extreme-environment training.
- 3. June 2024–March 2025 — Records a 286-day single ISS flight during Crew‑9/Starliner operations.
- 4. December 27, 2025 — Retirement from NASA becomes effective.
- 5. January 20–21, 2026 — NASA and news outlets publish retirement announcements and career summaries.
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