NASA astronaut Chris Williams conducts a spacewalk

iss074e0402919 (March 18, 2026) -- NASA astronaut Chris Williams is pictured outside the International Space Station during a spacewalk to complete the build and installation of a modification kit ahead of future solar array installation on the 2A power channel of the space station. It was William’s first spacewalk of his career, and the 278th in support of space station maintenance, upgrades, and assembly.