NASA Astronaut Sunita Williams Retires Post 27 Illustrious Years

By: WE Staff | Wednesday, 21 January 2026

• NASA astronaut Sunita Williams has retired after 27 years of service
• Three of her missions were completed on the International Space Station
• There are several records that Williams established in her space career

After 27 years of joining the space explorers, NASA astronaut Sunita Williams is retiring. Noted for her record-breaking spacewalks and nine-month-long continuous stay aboard the International Space Station, Sunita's retirement has been confirmed. According to a statement by NASA on Tuesday, her retirement comes into effect from Dec. 27, 2025.

During her 60-year-old career, Sunita flew to the ISS three times, en route to becoming one of NASA's most accomplished astronauts.

"Suni Williams has been a pioneer in human spaceflight, a leader in shaping the future of exploration through her time commanding the space station, and helping to pave the way for commercial missions to low Earth orbit," said NASA Administrator Jared Isaacman.

He added that she "played an integral role in furthering space exploration and supporting the transition to commercially operated missions in low Earth orbit."

In 2002, Williams gained his first exposure to harsh conditions through his participation in NASA’s NEEMO project (underwater).

After NEEMO, he continued to work on NASA’s projects while also serving as assistant deputy director of the Astronaut Office, which included overseeing operations in Star City, Russia, and developing the use of helicopters in training for lunar operations.

By the time Sunita retired from the Astronaut Corps, she had spent 608 days in space and is thus second all-time among NASA astronauts for duration.

During his solo missions she was tied for sixth longest duration at 286 days, and she is also the current holder of nine spacewalk records for females and currently occupies fourth place for total number of hours on a spacewalk (62 hours).

In a reminisce of space remark that Sunita gave at his farewell ceremony, he described it as "the best place to be" and that he has enjoyed all three missions he has completed in the Astronaut Office.