Astronomers: A comet fragment, not an asteroid, killed off the dinosaurs

For those of us who are not astronomers, this is still a giant rock that smacked into the earth and caused untold damage, but now we have a better idea of why and where said rock came from, and why it looked rather out of place for the type of rock it was supposed to be.

https://arstechnica.com/science/2021/02/astronomers-a-comet-fragment-not-an-asteroid-killed-off-the-dinosaurs/

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