Here's everything you need to know about why Saturn's rings are about to disappear — and when they will return.

The document builds on the academies' decadal survey, outlining recommended missions for NASA's next New Frontiers program.

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

NASA launched its new Saturn IB rocket on its first test flight. Also known as the Uprated Saturn I, the Saturn IB was built ...

After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

As Trump returns to the White House, however, most of those accomplishments are at risk. The budget overruns that hobble NASA ...

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

Searching for life on other celestial bodies, or at the very least the necessary components to support it, has been ...