Wearing the wrong shoe on Earth can lead to injury. Researchers still need to figure out the physical consequences of spending a long time walking around on the Moon.

Astronauts Suni Williams and Butch Wilmore, who have been on an unexpectedly monthslong assignment after serving on Boeing’s ...

During her spacewalk, she was seen riding the Canadarm2 when the Space Station was flying above London. The robotic arm took her from one end to another.

Sunita Williams and fellow astronaut Barry Wilmore stepped out of the station on Thursday to perform maintenance work and wipe its exterior to check for any surviving Earth microbes.