November 28, 2023

Wire Service Canada

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Here’s how a comet changed the whole of Canada

“Many of the craters on Earth are exceptionally compelling when viewed from space, showing clearly visible edges and well-defined holes. But not in the Sutbury Basin.

To tell the uniqueness of the Sutbury Basin, it is one of the largest meteorites ever discovered on Earth by Katherine Hanson of NASA’s Earth Observatory. Publishing photo Taken by Joshua Stevens using topographic data from the Landsat and Shuttle Radar Topography Mission of the U.S. Geological Survey.

We are in Ontario, Canada. To further complicate the view, the city of Greater Sudbury derives its name from the southern tip of a crater formed by a comet 1.8 billion years ago. It is fifty times older than Popeye, one of the best preserved craters in the world.

It was originally thought to have measured at least 200 kilometers, but over time it decomposed and eroded, and due to the exploitation of nickel and copper mines, the cosmic origin of the basin was discovered long before it was known.

“This part of Canada is responsible for that powerful collision due to its unique geography, which was initially thought to be an asteroid and later described as a comet. Ore penetrated into the fissures from the molten rock inside, ”writes astronomers, explaining the origins of Northern Ontario’s rich mining tradition.

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