Earth Might Have Had a Ring 466 Million Years Ago
WEB1 day ago · By Becky Ferreira. Sept. 20, 2024. If you were to look up from Earth some 466 million years ago, you might have seen a gleaming ring stretching across the sky, some scientists say. A study ...
Study: Earth had planetary rings like Saturn 466 million years ago
WEB22 hours ago · Scientists have proposed a fascinating new idea: Earth may have once possessed a ring system, akin to that of Saturn. These rings could have formed around 466 million years ago, during a tumultuous era marked by intense meteorite bombardment known as the Ordovician impact spike. This period was characterized by significant environmental changes ...
Earth May Have Had Rings Like Saturn 466 Million Years Ago
WEB4 days ago · The researchers' idea that Earth once had rings comes from reconstructions of Earth's plate tectonics from the Ordovician period —which ran between 485.4 million years and 443.8 million...
Did Earth have rings 466 million years ago?
WEB2 days ago · Science news, great photos, sky alerts. ... Their study of asteroid impact craters from 466 million years ago – during the middle Ordovician Period – shows Earth may have had its own ring system.
Earth once wore a Saturn-like ring, study of ancient craters suggests
WEB5 days ago · The Ordovician was a tumultuous time for our planet — it was one of the coldest periods in the last 500 million years and saw a dramatic uptick in the rate of meteorites striking Earth.
Earth May Have Once Had a Ring That Slowly Fell From The Sky
WEB5 days ago · Towards the end of the Ordovician roughly 445 million years ago, Earth entered a devastating ice age; the coldest in the last half a billion. A ring around Earth could have exacerbated this by casting a shadow over the surface.
Earth may have had a ring system 466 million years ago
WEB6 days ago · 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, which formed around 466 million years ago, at the beginning a period of unusually intense meteorite bombardment known as the Ordovician …
Evidence suggesting that earth had a ring in the Ordovician
WEBSep 12, 2024 · Earth may have had a ring during the middle Ordovician, from ca. 466 Ma. • Breakup of an asteroid passing within Earth's Roche limit likely formed the ring. • Among several features preserved is a near-equatorial band of impact craters. • Shading of Earth by the ring may have triggered a global icehouse period.
Ordovician–Silurian true polar wander as a mechanism for severe ...
WEBDec 26, 2022 · The Earth system underwent critical changes during the Ordovician–Silurian (O–S) transition 460–435 million years (Ma) ago. The end-Ordovician mass extinction, which can be regarded as the...
Late Ordovician climate change and extinctions driven by …
WEBDec 2, 2021 · Increased volcanism-related phosphorus delivery to the Late Ordovician ocean helps explain widespread cooling and eutrophication-driven extinctions, as shown by a biogeochemical model ...
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