NASA astronaut Don Pettit shared an image from the International Space Station showing a rare hopper crystal formation ...

Being in space means cool science experiments, and one such experiment conducted by a NASA astronaut while he was aboard the ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA astronaut Don Pettit and two cosmonaut colleagues will return to Earth this evening (April 19), and you can watch their ...

Astronauts grew a scroll-like crystal aboard the ISS, and its strange shape reveals what happens to ordinary salts once ...

Add Yahoo as a preferred source to see more of our stories on Google. In a remarkable coincidence, NASA astronaut Don Pettit will mark his 70th birthday with a fiery reentry through Earth's atmosphere ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA astronaut Don Pettit is carried to a medical tent shortly after he and Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner ...

The post, shared by astronaut Don Pettit, included a timelapse capturing the brief but beautiful moment.

Add Yahoo as a preferred source to see more of our stories on Google. A veteran NASA astronaut from Oregon who flew to orbit more than seven months ago with two Russians is preparing to return to ...

Don Pettit, NASA's oldest active-duty astronaut, celebrated his 70th birthday with two cosmonaut crewmates overnight Saturday, undocking from the International Space Station and plunging back to Earth ...

Update: Don Pettit and crew made a safe, parachute-assisted landing at 9:20 p.m. Saturday, April 19 (6:20 a.m. on Sunday, April 20, Kazakhstan time), southeast of Dzhezkazgan, Kazakhstan, NASA said. A ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A long-exposure photograph ...

April 20 (UPI) --Veteran NASA astronaut Don Pettit celebrated his 70th birthday as he returned to Earth from a seven-month stay at the International Space Station, during which he completed ...