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A comet, not an asteroid, killed the dinosaurs, say astrophysicists

At Smithsonian Mag: Siraj and co-author Avi Loeb concluded from their analysis that Jupiter's gravitational field was strong enough to bump many such long-period comets from the Oort cloud off course, bringing them very close to the Sun. Read More ›

Dino death: Asteroid impact more likely than volcanoes, new study says

t Phjys.org: Now, a research team from Imperial College London, the University of Bristol and University College London has shown that only the asteroid impact could have created conditions that were unfavourable for dinosaurs across the globe. Read More ›

Smithsonian: The asteroid strike was only one factor in dinosaur extinction

Sixty-six million years ago, an asteroid hit the Yucatan Peninsula in Mexico and produced cataclysmic disruptions that, it is believed, killed off about 75% of species (the K/Pg extinction). But many researchers think there must have been other factors at work. Read More ›