Earth had rings like Saturn 466 million years ago says research
Saturn is currently the only planet in the solar system around which beautiful rings are found. But Earth and Planetary Science Letters (Earth and Planetary Science Letters) A new research has been published which imagines there being rings around the Earth. These rings would have existed approximately 466 million years ago. Where would these rings have come from, and where have they gone?
In fact, research has said that it might have been the time of a heavy meteor shower. This has been called Ordovician impact. In which a large number of meteors would have fallen from the sky to the Earth simultaneously. The study’s lead author, Andy Tomkins, Monash Universityhas studied the positions of 21 asteroid impact craters. This is from the Ordovician period. What the researcher found was surprising. All these craters were present within 30 degrees of the equator. Whereas 70 percent of the land area of the earth’s surface remained separate from this region.
The research team speculated that a large asteroid might have come very close to the Earth and might have crossed its Roche Limit. Because of this the asteroid would have broken into many small pieces. These small fragments would have spread around the Earth’s orbit. Gradually, over time, these pieces would have fallen on the surface, forming craters.
This new research seems to push the boundaries of geology even further. Researchers believe that this ring system may have also affected the Earth’s climate because due to their gathering in this way, they would have blocked the sunlight and cast a shadow over an area on the Earth. Due to this, there must have been a period of cold here which is called Hirnessian Icehouse. This was a period in which the Earth would have been coldest in the last 500 million years.
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