Expedition 72 crew members aboard the International Space Station (ISS) wrapped up their week with key science hardware ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA has announced ...

Apollo 8 splashed down in the northern Pacific Ocean on December 27 after a total mission time of 6 days, 3 hours, 42 seconds. Upon their return, Time magazine named Borman, Lovell, and Anders their ...

A holiday photo of NASA astronaut Suni Williams looking gaunt has drawn concern — as her return to Earth has been delayed a second time. Images of Williams, 59, shared by NASA on Tuesday ...

NASA Christmas from outer space! Suni Williams and Butch Wilmore, the two astronauts stranded in space since June, posed for a festive photograph ahead of the holidays in an Instagram post shared ...

China says two of its astronauts completed a nine-hour spacewalk Tuesday, a figure that beats the US-held record for the world’s longest spacewalk set in 2001, in the latest milestone in the ...

WASHINGTON, Dec 20 (Reuters) - Two Chinese astronauts this week completed a world-record spacewalk of more than nine hours, according to a statement from China's Manned Space Agency, marking ...

Veteran astronauts Butch Wilmore and Suni Williams arrived at the ISS in June. Two US astronauts stranded for months on the International Space Station will remain there at least until late March ...

Two Chinese astronauts this week completed a world-record spacewalk of more than nine hours, according to a statement from China’s Manned Space Agency, marking another milestone for Beijing’s rapidly ...