Scientists used models of how Earth's tectonic plates have moved over that time to pinpoint where those impacts initially took place and found that all 21 impacts occurred close to the equator.

During a tumultuous period for our planet around 466 million years ago, Earth was pelted with meteorites and rocked by ...

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.

While Saturn's rings are the best known, Jupiter, Uranus and Neptune also have rings. And now, a new study published in the scientific journal Earth and Planetary Science Letters seems to show ...

An illustration of Earth with a ring. Kevin M. Gill via Wikimedia Commons under CC BY 2.0 During a tumultuous period for our planet around 466 million years ago, Earth was pelted with meteorites ...