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Planetary science

Planetary science

Iridium in undersea crater confirms asteroid wiped out the dinosaurs

24 Feb 2021 Hamish Johnston
Rock cores
Asteroid dust: Sean Gulick of the University of Texas at Austin (right), and Joanna Morgan at Imperial College London examine cores retrieved from the crater during the 2016 research mission led by the International Ocean Discovery Program. (Courtesy: The University of Texas at Austin/Jackson School of Geosciences)
Strong evidence that the dinosaurs were killed-off 66 million years ago by an asteroid hitting Earth

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Hamish Johnston is an online editor of Physics World
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