Once upon a time, Earth may have sported a planetary ring of its very own. The hypothetical ring didn't last long, cosmically speaking – just a few tens of millions of years. But that was long enough ...

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 ...

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Geological evidence, including an Ordovician-era increase in earthquakes, tsunamis, meteorites, and crater formation, suggests a significant celestial event approximately 466 million years ago. A ...

A weird number of craters are located close to the equator, and the odds that this is random are incredibly low, researchers say. Reading time 3 minutes Astrophysics was once so crazy in love with ...

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 ...

Researchers have come across some evidence suggesting Earth had a ring system around 466 million years ago, which may have been a contributor to the global cooling event known as the Hirnantian ...

A chain of unexplained rings rises from the Sunbury hills at the fringe of Melbourne, Australia. These earth rings, located in Wurundjeri Woi-wurrung Country, are not a natural formation but evidence ...

(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 ...