A weird number of craters are located close to the equator, and the odds that this is random are incredibly low, researchers say.

Researchers have found evidence suggesting that our planet may have once had a ring system around 466 million years ago.

From Grace Earth may have had its own ring system that formed around 466 million years ago, lasting for tens of millions of years. As detailed in a new study published in the journal Earth and Planetary Science Letters,

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, according to a new study