NASA astronaut Suni Williams retired in 2026 after a record 608 days in space, including 62 hours of spacewalks, following a prolonged ISS mission due to Starliner issues.

NASA astronaut Suni Williams retired in late 2025 after returning from an extended stay aboard the International Space Station, originally planned as a week-long test flight in 2024 but prolonged due to Starliner capsule issues. She and crewmate Butch Wilmore returned in March 2025 via SpaceX. Williams, a former Navy captain with over 27 years at NASA, completed three space station missions and logged 608 days in space, including a record 62 hours of spacewalks. Her retirement was announced in early 2026, with NASA praising her contributions to human spaceflight.