During a tumultuous period for our planet around 466 million years ago, Earth was pelted with meteorites and rocked by ...
Researchers believe a ring system around Earth could have contributed to the global cooling event known as the Hirnantian ...
The hypothetical ring didn't last long, cosmically speaking – just a few tens of millions of years. But that was long enough ...
Saturn’s rings are iconic, but new evidence suggests Earth might once have sported one of its own. This ring would have ...