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

It's 'spoke season' on Saturn when strange features appear in the planet's rings. The Hubble Space Telescope continues to ...

We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

Observing the Pleiades through a pair of binoculars or a 6-inch telescope will reveal dozens of energetic young stars, including the seven most prominent stellar bodies from which the cluster got its ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer ...

Most scientists follow this pronunciation for exactly that reason: it’s neutral. It avoids the scatological “yoor-AY-nuhss” ...

CAPE CANAVERAL, Fla. (AP) — A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor.

Humans are finally building the technology that could tell us where to look, when to look, and what signs to watch for. What might we find? Why does it matter?