During the Ordovician, only about 30% of Earth's equatorial surface was solid land that would preserve evidence of impacts. Saturn is famous for its extensive ring system, which was likely fed by ...

Back when the Earth was crawling with trilobites and other strange shelled creatures, our planet may have had a ring just like Saturn's. This ancient ring system is thought to have formed about ...

Famously known for its extensive ring system, Saturn is one of four planets in our solar system that have the distinctive feature. And now, scientists hypothesize that Earth may have sported its own ...