A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the ...

The Falcon 9 rocket, which lifted off from Vandenberg Air Force Base, took flight during evening twilight, when light from ...

"For the first time, we could trace the boundary between the gas residing in galaxies and the material contained within the ...

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

Americans in more than a dozen northern U.S. states may be able to catch a glimpse of the northern lights Sunday evening, as ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

As someone who lives near the city, light pollution limits what I see when I look up at night. However, that doesn't mean I can't appreciate the night sky at all. In this guide, I'll show you some ...