Do you prefer multistory episodes, single story episodes, or a mix? Let us know! In this episode of Discover Daily, we explore a remarkable theory suggesting that Earth had a spectacular ring system, similar to Saturn's, around 466 million years ago during the Ordovician period. The study, published in Earth and Planetary Science Letters, presents evidence that a large asteroid passed within Earth's Roche limit, tidally disrupting and forming a debris ring that caused the anomalous conc...