The new study asserts that Earth's ring formed around 466 million years ago, and stuck around for around 40 million years before dissipating. Researchers say that the existence of such a ring would help solve several puzzles from Earth's past and that much of the data they collected supports its existence.

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore apart.

Earth may have had rings. At least that's what a new study published this month claims. Here's what we know so far.