Longtime NASA astronaut Don Pettit, who has ventured to space four times, returned to Earth on Saturday night from the International Space Station. Pettit, who turned 70 on Sunday, landed at 9:20 p.m.

Space changes you. It strengthens some muscles, weakens others, shifts fluids within your body, and realigns your sense of balance. NASA's Human Research Program works to understand—and sometimes even ...

"The great thing that I found when I began to live my life as an astronaut was that the world seemed so different. It was as if I was viewing my environment with a fresh pair of eyes." - John Barlow, ...

This as-told-to essay is based on a transcribed conversation with Marshburn, a 64-year-old former NASA astronaut who is now a VP at Sierra Space. The following has been edited for length and clarity.

Sally Ride became the first American woman in space on June 18, 1983. The soft-spoken physicist became an icon and was thrust into the spotlight even before she landed back on Earth. However, beneath ...

Sally Ride was the first American woman to go to space back in 1983. And for a while, it seemed like she was the most famous person on Earth and in space. She dominated headlines. She was all over TV.

An Inside Look Into the Private Life of Late Astronaut Sally Ride, as Told by Her Partner Tam (Exclusive Clip) originally appeared on Parade. Tam O’Shaughnessy is sharing the true story of her 27-year ...

Tam O’Shaughnessy is sharing the true story of her 27-year relationship with iconic astronaut Sally Ride. In National Geographic's new documentary Sally, O’Shaughnessy, 73, gives insight into the pair ...