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

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

And now, a new study published in the scientific journal Earth and Planetary Science Letters seems to show that Earth itself once had a similar ring. The new study asserts that Earth's ring formed around 466 million years ago and stuck around for around 40 million years before dissipating.