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Dust From Asteroid That Ended Dinosaur Reign Closes Case on Impact Extinction Theory – ScienceAlert

Having dominated the planet’s surface for hundreds of millions of years, dinosaur diversity came to a dramatic conclusion some 66 million years ago at the hot end…

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Having dominated the planet’s surface for hundreds of millions of years, dinosaur diversity came to a dramatic conclusion some 66 million years ago at the hot end of an asteroid impact with what is today Mexico’s Yucatán Peninsula.
It’s a theory so swollen with data that it’s hard to imagine any room for doubt remains that this is indeed what happened. Were it a cold case, it’d be rubber-stamped and filed under ‘Solved’ by now.
But scientists are a nitpicky bunch, and a tiny gap in the chain of…

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