Two NASA astronauts steppes outside the International Space Station on Thursday to take part in U.S. Spacewalk 93, NASA's ...

Don Pettit, NASA's oldest active astronaut, addressed his eventful return to Earth. Shortly after the spacecraft touched down ...

In NASA’s fifth all-female spacewalk, Anne McClain and Nichole Ayers installed solar panel mounts and repositioned antennas ...

An astronaut who missed out on the first all-female spacewalk is getting her chance six years later. NASA's Anne McClain ...