NASA astronauts Jessica Meir and Chris Williams lead a spacewalk mission on March 18 to upgrade ISS solar arrays, with roles, tasks, and supporting crew outlined.

NASA astronaut Jessica Meir shared pictures of herself reconfiguring her spacesuit and assembling equipment in the orbital platform's airlock.

NASA is putting a historic spacewalk on hold. Astronauts Christina Koch and Anne McClain had been scheduled to conduct a spacewalk, in what would have been the first all-female spacewalk. In addition, ...