Human Spaceflight

Astronaut Suni Williams left NASA late last month after 27 years of service. She spent a total of 608 days in space, more than all but one other American astronaut.

The first emergency operation in the history of China's human spaceflight program ended on Jan. 19 when an uncrewed Shenzhou 20 capsule damaged by a space-junk strike came safely down to Earth.

The four astronauts of SpaceX's Crew-11 mission will discuss their shorter-than-expected stay aboard the International Space Station today (Jan. 21), and you can watch it live.

The evacuation raises a question worth exploring: how do astronauts stay healthy in space, and why is this early evacuation so unusual?

The four astronauts of SpaceX's Crew-11 mission made it to Houston today (Jan. 16), just a day after their unprecedented medical evacuation from the International Space Station.

Four ISS crewmembers were brought home a month early due to an undisclosed but non-emergency "medical concern".

NASA leaders said the Crew-11 mission's astronaut medical evacuation shows how the agency is prepared to handle the unexpected.

Space apparently changes your frame of mind in more ways than one.

Former NASA astronaut and current U.S. Senator Mark Kelly is fighting back, suing the Pentagon for its plan to censure him over comments he made in a video late last year.

The Washington Monument lit up on New Year's Eve in celebration of the Artemis 2 moon mission as well as the 250th anniversary year of the Declaration of Independence.