NASA astronauts Jessica Meir and Chris Williams completed the first U.S. spacewalk in nearly a year on the International Space Station (ISS) on March 18, 2026. The pair installed a mount for an advanced power-producing solar panel and attached the bracket structure for an ISS Roll-Out Array (iROSA), which will be the seventh of eight rollout arrays deployed since the upgrades began in 2021. The new iROSAs will increase the ISS's electricity supply by 20% to 30%. This move paved the way for NASA to use the technology for deep-space missions such as the Double Asteroid Redirection Test in 2022. The spacalk ended at 3:54 p.m. EDT (1954 GMT), 7 hours and 2 minutes after it began.