, and it was likely caused by fragments of a comet that would have measured around 100 kilometers across.As dust clouds smothered Earth, they kicked off a mini ice age that kept the planet cool for another thousand years, just as it was emerging from"The hypothesis is that a large comet fragmented and the chunks impacted the Earth, causing this disaster,"from the University of Kansas, who co-authored a 2018 study detailing this catastrophic event.
To peer back into the burning fires and shock waves of this major event, a large number of geochemical and isotopic markers were measured from more than 170 sites across the world, involving a team of 24 scientists. – a species specializing in covering barren ground, as you might get when your planet has been hit by a series of massive fireballs.In fact, parts of the comet that disintegrated in space are still likely to be floating around our Solar System 13,000 years later.
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