Astronaut Chris Williams at NASA HQ

NASA astronaut Chris Williams, right, answers questions from members of the audience about his recent mission to the International Space Station alongside Jacob Keaton, acting director of the International Space Station program, Thursday, Oct. 22, 2026, at the Mary W. Jackson NASA Headquarters building in Washington. During his first mission, Williams spent 241 days onboard the orbiting laboratory as part of Expedition 74, conducting research and completing two spacewalks before returning to Earth in July of 2026. Photo Credit: (NASA/Keegan Barber)