A theory involving a "mushy zone" of ice along the moon’s fissures could explain the enormous plumes erupting from its south ...

The view was acquired on Sept. 14, 2017 at 19:59 UTC (spacecraft event time). The view was taken in visible light using the ...

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

The twin probes should operate for about a year before the team is forced to shut off yet more instruments. The Voyager ...

Why Has No Rocket Surpassed Saturn V? Despite advances in technology, no rocket has matched Saturn V’s power and size. But ...

Saturn's iconic ring system will disappear, albeit temporarily, on March 23—a preview of its fate in 100 million years.

James Webb Space Telescope and the W.M. Keck Observatory captured new images of Saturn's moon Titan. Credit: NASA/STScI/W. M.

A pair of extraordinary space missions that have been headed out of the solar system for almost half a century are getting a ...

NASA’s twin Voyager probes, which launched in 1977, are the longest-running missions to send data home. But as their power ...

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

NASA recently shut down Voyager 1's cosmic ray subsystem and Voyager 2's low-energy charged particle will also be deactivated ...

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 ...