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 ...

SIR JAMES JEANSl returns to his original form of the tidal theory, in which the sun at the time of disruption was distended beyond the orbit of Uranus. As I was responsible for the modification ...

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.

Now Earth’s oceans are no longer unique. They’re just strange. They exist on our planet’s sunlit surface, while the seas of the outer solar system are tucked beneath ice and bathed in darkness.

The sun rises from the east, and sets in the west - this is a well-established fact for the longest time, and this is due to ...

Meet the surprising, oddball worlds moving around our solar system. From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of ...

As you might expect, this vast canyon is the largest in the solar system, spanning more than 2,500 miles (4,000 km) and diving up to 23,000 feet (7,000 meters) into the red planet's surface.

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.