Eli5: How have we not found the 10km wide asteroid which wiped out the dinosaurs? Shouldn’t we have at least found a crater?
In: Earth Science
We are virtually certain where the crater is and that an asteroid was responsible; in the layer where the mass extinction of dinosaurs happens there is also a layer of Iridium a very rare element on Earth but one that is present in asteroids so it is likely that the source of the Iridium is an asteroid which hit at around the same time the dinosaurs died. https://youtu.be/kVg-QZCzqg0
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