If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

Astronomers have discovered a panoply of new moons orbiting Saturn, bringing the ringed gas giant's total up to 274 moons—far ...

Getting from Earth to space isn’t just about speed—it’s about planning the right trajectory. The Moon, our closest neighbor, ...

Using data collected by NASA's Juno spacecraft as it flew past Jupiter's highly volcanic moon Io in late 2023 and again in ...

Viewers across North America will get to enjoy a full Blood Worm Moon during a total lunar eclipse on March 13 into March 14.

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

A huge haul of 128 newfound satellites might be a hint of past collisions in the planet’s orbit, or something else.

Saturn surpasses Jupiter with 128 newly discovered moons, becoming the planet with the most moons in our solar system.

The smashups are thought to have occurred at least 100 million years ago, but the moons they created are new to astronomers.

Saturn just solidified its title as ‘moon king’ with an updated tally of 274 satellites orbiting the gas giant. The ...

Saturn was already the reigning champion in the moon department. Now, with 274, Saturn has more moons than all the other ...

NASA's Europa Clipper mission set sail last year and should reach Jupiter and its moons in 2030, while the European Space Agency's JUICE mission should arrive in 2031. Both missions will almost ...