
The Soyuz MS-19 spacecraft is seen as it lands in a remote area near the town of Zhezkazgan, Kazakhstan with…

NASA astronaut Mark Vande Hei talks to media and answers social media questions at NASA's Johnson Space Center.

NASA astronaut Mark Vande Hei talks to media and answers social media questions at NASA's Johnson Space Center.

NASA astronaut Mark Vande Hei talks to media and answers social media questions at NASA's Johnson Space Center.

NASA astronaut Mark Vande Hei talks to media and answers social media questions at NASA's Johnson Space Center.

NASA astronaut Mark Vande Hei talks to media and answers social media questions at NASA's Johnson Space Center.

Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars.

Fred Haise conducted tail flutter tests in a Piper PA-30 Twin Commanche. During the flight the horizontal tail surfaces fluttered…

"I applied to SaSa is because I believe that SaSa will provide me the opportunity to feed my desire and…

Australian Space Agency Head Enrico Palermo, left, and NASA Deputy Administrator Pam Melroy, shake hands after signing a joint statement…