Over four centuries after Galileo Galilei first observed Ganymede in 1610, scientists have pieced together a visual record that tells a story of geological evolution marked by impacts, tectonics ...

Some larger solar system objects haven't quite managed this, and most astronomers agree that it's only possible for Mimas because of the moon's low density — just 15% greater than water. Pan and ...

If you could take a spin through the solar system, these are the sights you shouldn’t miss—including the possibility of life on an ocean moon. By Paul M. Sutter Published: May 24, 2023 4:52 PM EDT ...

A new view of the most explosive moon in the solar system . Jan. 25, 2023 at 1:50 pm Updated Jan. 26, 2023 at 5:20 pm . By . Oliver Whang. The New York Times.

Flybys of Jupiter’s fiery moon Io, carried out by NASA’s Juno spacecraft, are helping to solve the enduring mystery of why the small moon is the most volcanically active body in our solar system.

The largest moon in our solar system might contain several layers of rock, water and exotic high-pressure ices. Interactions between rock and water are fundamental to microbial diversity on Earth.

Saturn has at least 274 moons — the most of any planet in the solar system. (Image credit: dottedhippo via Getty Images) If you look up on a clear night, the brightest and largest object in the ...

New research confirms Jupiter's moon Io has been a volcanic hellscape for almost the Solar System’s entire 4.57 billion-year history.

The solar system's most volcanic body, the Jupiter moon Io, has been in turmoil for at least 4.57 billion years, right back to its birth and the infancy of the sun.

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system. CNN values your feedback 1.