Add Yahoo as a preferred source to see more of our stories on Google. A general view of the International Space Station (ISS) orbiting Earth. A spacewalk planned for Thursday outside the International ...

NASA astronauts planned to conduct two spacewalks in January to conduct repairs and upgrades to the International Space Station. The first spacewalk, which was set to take place on Jan. 8, was ...

NASA astronaut Suni Williams has retired after 27 years of service and a career defined by endurance, leadership, and firsts in space. She spent 608 days in orbit, completed nine spacewalks, and twice ...