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Scientists Have New Theory for What Killed the Dinosaurs – VOA Learning English
American researchers have proposed a new theory about the event that killed off the dinosaurs. They believe a piece of a comet struck Earth causing temperatures…
American researchers have a new theory about how an object struck the Earth and caused the dinosaurs to die off.
Scientists mostly agree on where the impact happened about 65 million years ago. They say a huge object struck an area off the coast of what is now Mexico. Astronomers have said the most likely cause of the strike was either an asteroid or a comet.
In recent years, researchers have presented evidence that the impact was caused by an asteroid. The theory suggests the asteroid came from…
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