U.S District Judge Timothy Kelly, left, swears in Jared Isaacman, right, as 15th administrator of NASA, as Isaacman’s parents, Donald and Sandra Marie join, Thursday, Dec. 18, 2025, at the Eisenhower Executive Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

ISS046e038911 (01/10/2016) --- NASA astronaut Scott Kelly (left) and ESA (European Space Agency) astronaut Timothy Peake (right) review images during a procedure to replace a fan pump separator inside one of the U.S. spacesuits aboard the International Space Station. The activity took place inside the Quest airlock where all U.S. based spacewalks begin and end.