SpaceX will launch a secret payload for the U.S. military today (Dec. 9), and you can watch the action live. A Falcon 9 ...

The Shenzhou 20 vehicle was deemed unfit to carry astronauts back to Earth after suffering a space junk strike.

"The detection of life on Mars is a persistent top priority for explorers of many disciplines, and it is the top science ...

Whether you're a casual fan or a spaceflight enthusiast, see how well you know one of the companies pushing the boundaries of ...

But the supermassive black hole lurking at the core of NGC 3783 is 30 million times the mass of our humble sun, and the ...

Aetherflux has focused its efforts on space-based solar power, with the goal of "building an American power grid in space." ...

The image shows a good example of the phenomenon Some of the best views of Earth come from beyond our home planet, as ...

Auroras may be visible from Alaska to New York as an incoming coronal mass ejection is expected to slam into Earth today.

Jonny Kim of NASA and Sergey Ryzhikov and Alexey Zubritsky of Roscosmos touched down in Kazakhstan on Tuesday (Dec. 9).

"We reported hints of methane, but the question is, 'is the methane attributable to molecules in the atmosphere of the planet ...

However, astronomers in Hawaii just spotted a pair of exciting discoveries — a huge exoplanet and a brown dwarf — using Japan ...

Beyond the local interstellar clouds and their wispy clumps of hydrogen and helium atoms in the form of gas and dust, the ...