Stratolaunch tests reusable hypersonic rocket plane. Stratolaunch has finally found a use for the world's largest airplane.

After billions of dollars in spending and decades of planning, NASA may be forced to abandon precious samples of air, rock ...

We’ve observed with concern a rising trend in human spaceflight discussions: the suggestion that we bypass the moon and send ...

Observers say proposed cuts to science and other programs undermine increased funding for human space exploration efforts.

A new Musk project is on the brink of victory: to officially turn a small patch of coastal South Texas into a city known as ...

Monday's 100th launch was marked by a SpaceX mission transporting cargo and payloads — or equipment for research projects — to the International Space Station, which is a home base in space ...

Cue "All By Myself" by Eric Carmen. The tracks of NASA’s Curiosity Mars rover was photographed from space as it made its way to the next science stop. Far above aboard the Mars Reconnaissance ...

NASA’s Mars Reconnaissance Orbiter (MRO) has captured what’s believed to be the first orbital image of the Curiosity rover “on the move.” The remarkable photograph, enhanced to bring out ...

For apparently the first time ever, the Curiosity rover on Mars has been spotted mid-drive ... The new image shows the rover at the base of a steep slope—one it’s since ascended en route ...

All evidence points to Mars having had a carbon dioxide-rich atmosphere billions of years ago, but insufficient carbonates in Martian soil challenge this theory. Now, a new study using data from ...