A new study from Monash University scientists suggests that Earth may have had a ring system that formed around 466 million years ago, during the middle Ordovician, from ca. 466 Ma. The findings challenge our understanding of Earth’s ancient history.
Scientists studied the ancient plate tectonics and the positions of 21 asteroid impact craters from the Ordovician period. All these craters are within 30 degrees of the equator, even though most of Earth‘s land is far from the equator, which traditional theories can’t explain.
