Saturn's outermost ring is the most active ring in the solar system. New models reveal how it came into being. Michelle Starr is CNET's science editor, and she hopes to get you as enthralled with ...

Researchers ran more than 200 different versions of the impact between two such satellites. In a wide range of scenarios, the collision would scatter the right amount of ice around Saturn to ...

Comet collision theory wrong. The leading ring-origin hypothesis suggests they formed when a small satellite collided ... that were a mixture of rock and ice, rather than the ice-rich rings we ...

The mystery behind Saturn's weirdest ring, the F ring, and its two shepherd moons, Pandora and Prometheus, has been solved. An ancient collision caused it, scientists say.

Question: What is the difference between a rock that orbits a planet as part of a ring system, and a rock that orbits a planet as a moon? Pluto has moons that are less than 10 miles wide; should ...

In the real world, planetary collision Lars von Trier’s 2011 existential sci-fi tale Melancholia (streaming now on Peacock) follows a small group of people celebrating a wedding during the Earth ...