In a discovery that challenges our understanding of Earth’s ancient history, researchers have found evidence suggesting that Earth may have had a ring system that formed around 466 million years ago, at the beginning of a period of unusually intense meteorite bombardment known as the Ordovician impact spike. In a discovery that challenges our understanding of Earth’s ancient history, researchers have found evidence suggesting that Earth may have had a ring system that formed around 466 million years ago, at the beginning of a period of unusually intense meteorite bombardment known as the Ordovician impact spike. Planetary Sciences Phys.org – latest science and technology news stories
Earth may have had a ring system 466 million years ago
