NASA Astronauts Conduct 100th US Spacewalk Outside International Space Station

NASA astronauts conduct 100th US spacewalk outside International Space Station

NASA astronauts will make history Thursday with the 100th U.S. spacewalk outside the International Space Station.

REPLAY: NASA, Canadian Astronauts Conduct 100th Spacewalk From ISS Quest Airlock

NASA's Artemis II crew—NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, and Canadian Space Agency (CSA) astronaut Jeremy Hansen—speak during a press conference in Houston on April 16, 2026. (Ashley Landis/AP Photo)