NASA astronauts Jessica Meir and Chris Williams prepared the International Space Station for the addition a new solar array during a spacewalk on Wednesday, March 18, 2026.

Four giant solar ‘wings’ will provide power for the first crewed mission to the Moon in over 50 years, due to launch later today.

NASA astronauts conducted a 7-hour spacewalk Wednesday related to a modification kit for the solar panels powering the International Space Station. (NASA Photo)

Astronauts Josh Cassada and Frank Rubio installed and deployed an ISS Roll Out Solar Array (iROSA). The rollout occurred while the International Space Station was flying over the Pacific Northwest. Footage courtesy: NASA | | edited by Space.

Two NASA astronauts conducted a space walk to carry out work on the International Space Station on Wednesday, March 18.Footage posted to X shows what a NASA commentator in the video describes as a

NASA astronauts will conduct a spacewalk outside the International Space Station to prepare for the installation of two roll-out solar arrays.

While Artemis II will not be landing on the moon, it will pick up where Apollo 17 mission left off and set the stage for the upcoming Artemis III.