Gullies on Mars form during the winter, made liquid by carbon dioxide frost.
This oblique view of the northeastern United States highlights the coasts (left to right) of Massachusetts, Rhode Island, Connecticut, New…
NASA astronaut and Expedition 62 Flight Engineer Andrew Morgan services the Microgravity Science Glovebox (MSG) inside the U.S. Destiny laboratory…
NASA astronaut and Expedition 62 Flight Engineer Jessica Meir configures the Light Microscopy Module inside the Fluids Integrated Rack.
This oblique view of the eastern United States highlights the coasts (bottom left to top right) of New Jersey, Delaware,…
"When you look out into space, and you see all those stars and all those galaxies — there’s just so…
"My goal right now is to find a need and fill it. That’s my thing. And that’s all through life.…
"You ask little kids what their big dream is, and it’s not uncommon to hear 'astronaut.' It’s not uncommon to…
"My very first project was literally on a bar napkin. And I was given three dimensions: the top, the bottom…
"When the Challenger accident happened, I saw how everyone came together in the public affairs office. I mean, they were…
