There's a ritual that plays out, largely unnoticed, at the end of every spacewalk. The outer hatch seals shut, the airlock pressurizes, and the astronaut reaches up to remove their helmet. What hits ...

NASA astronauts Nichole Ayers and Anne McClain complete egress of the International Space Station during a spacewalk mission.

A health scare prompted the first ever early return from the International Space Station for a medical reason. Does it change the plan for deep space missions?

One year after Gemini IV astronaut Edward H. White completed NASA's first spacewalk the agency prepared for a demanding ...

An Italian astronaut who almost drowned in space is the first European to be selected for Nasa’s Artemis Moon mission.