Col. Jeff Williams

NASA astronaut and retired U.S. Army Col. Jeffrey Williams, who played a key role in the design, construction, and operation of the International Space Station, is retiring on Sunday, Jan. 14, 2024, after more than 27 years of service at the agency.

The two-time station commander spent 534 cumulative days in space spanning four trips to the space station. He spent nearly 32 hours outside of the orbital laboratory on five spacewalks.

“Jeff’s dedication and commitment to advancing NASA’s mission for the benefit of all humanity is truly admirable,” said NASA Johnson Space Center Director Vanessa Wyche. “His willingness to go above and beyond has impacted several generations and will continue to inspire future generations to come.”