NASA astronaut Jonny Kim replaces computer hardware inside the Cold Atom Lab

iss073e0817671 (Oct. 2, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Jonny Kim replaces computer hardware inside the Cold Atom Lab aboard the International Space Station’s Destiny laboratory module. The Cold Atom Lab produces clouds of atoms chilled to about one ten-billionth of a degree above absolute zero—far colder than the average temperature of deep space. This extreme cold allows scientists to study fundamental behaviors and quantum characteristics that are difficult or impossible to observe on Earth.