From explaining the dinosaur extinction to a brief spell in jail, geologist Ludovic Ferriere describes how he moonlights as a crater hunter, and what Earth’s blasts from the past can tell us
or comets long ago are more common on Earth than you might think. They are just a good deal trickier to locate than those peppering the barren, unchanging surface of the moon. However, finding them can reveal details of prehistoric events that have had a lasting impact, as typified by the crater left behind by the asteroid impact that ended the reign of the dinosaurs.
From a scientific point of view, people get excited about impact craters because we now know that one single asteroid impact can have consequences on the scale of the whole planet, like the, a 12-kilometre-wide asteroid that hit Earth 66 million years ago near where the coast of Mexico is today.
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