Just four years after the first human traveled to space, a Soviet cosmonaut and later an American astronaut took next steps that would be vital to exploration: They walked in space. A spacewalk, when ...

NASA has successfully completed its first spacewalk since March. American astronauts Frank Rubio and Josh Cassada returned to the interior of the International Space Station (ISS) on Tuesday afternoon ...

Expedition 38 astronauts Rick Mastracchio and Mike Hopkins began the first of three planned spacewalks Dec. 21 to remove and replace a faulty coolant pump module on the international space station ...

2024 was a breakthrough year for space exploration, including several milestones like the first private lunar lander touchdown and the first civilian spacewalk, as well as the beginnings of missions ...