NASA astronaut Chris Williams is pictured during a spacewalk

iss074e0404601 (March 18, 2026) --- NASA astronaut and Expedition 74 flight engineer Chris Williams is pictured outside the International Space Station during a spacewalk to complete installation of a modification kit ahead of future solar array installation on the 2A power channel of the orbital outpost. It was William’s first spacewalk of his career, and the 278th in support of space station maintenance, upgrades, and assembly.