Astronomers: A comet fragment, not an asteroid, killed off the dinosaurs – Ars Technica

90 with 59 posters participating
Harvard astronomers have a new theory about the origin of the comet that led to the extinction of the dinosaurs.
Some 66 million years ago, a catastrophic event occurred that wiped out three-quarters of all plant and animal species on Earth, most notably taking down the dinosaurs. An errant asteroid from the asteroid belt has been deemed the most likely culprit. However, in a new paper published in Scientific Reports, Harvard astronomers offer an alternative: a special…

Click here to view the original article.