NASA astronauts Jessica Meir and Chris Williams are seen outside the International Space Station installing a solar array modification kit during U.S. EVA 94 on March 18, 2026. Credit: NASA
NASA astronauts Jessica Meir and Chris Williams are seen outside the International Space Station installing a solar array modification kit during U.S. EVA 94 on March 18, 2026.
NASA

NASA astronauts Jessica Meir and Chris Williams concluded their spacewalk outside the International Space Station at 3:54 p.m. EDT. It was Williams’ first spacewalk and Meir’s fourth.

During the approximately seven-hour and two-minute spacewalk, Meir and Williams completed their primary objectives, which included preparing the 2A power channel. This work will enable the future installation of roll-out solar arrays to provide additional power for the orbiting laboratory, supporting critical systems and its safe, controlled deorbit.

The duo also completed additional tasks, including installing a 2A power system jumper cable, and adjusting bolt torque on a battery box. The remaining tasks, including installing a lens cover on a camera attached to the station’s Canadarm2 robotic arm and swabbing for microorganisms near the Quest airlock, will be moved to a future spacewalk.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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