From the surface, Earth looks like a relatively ordinary rocky planet, wrapped in clouds and a thin blue atmosphere. A new line of research argues that, hundreds of millions of years ago, it may have ...

The rings of Saturn are some of the most famous and spectacular objects in the Solar System. Earth may once have had something similar. In a paper published last week in Earth & Planetary Science ...

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A recent study claims that Earth may have once had a ring. The theory would explain the presence of an odd density of impact craters around the equator dating back to the Ordovician period. A ring ...

Today, only the largest planets in the solar system have rings, but a new study suggests Earth may have been a ringed planet in the distant past. Scientists studying the geology of the Ordovician ...

Earth may have had rings like Saturn many, many millenia ago. However, the formation didn't last long, and it eventually collapsed, falling to the surface of our planet, leaving craters where pieces ...

(CNN) — 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 ...