February 16, 20211:55 AM ET
A skeleton of anAllosauruson display at Drouot auction house in Paris in October. A new theory says the dinosaurs were killed by a comet fragment that originally came from the edge of the solar system.Thibault Camus/AP
For decades, the prevailing theory about the extinction of the dinosaurs was that an asteroid from the belt between Mars and Jupiter slammed into the planet, causing cataclysmic devastation that wiped out most life on the planet.
But newresearchout of Harvard University theorizes that the Armageddon-causing object came from much farther out than originally believed.
According to this new theory, the devastation came not from a relatively nearby asteroid, but from a sort of long-distance comet that came from the edge of the solar system in an area known as the Oort cloud.
The gravity…
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