Researchers Uncover Unexpected Origin of the Dinosaur-Killing Asteroid

The asteroid that led to the extinction of the dinosaurs 66 million years ago probably came from the outer solar system. Researchers discovered that the asteroid that wiped out the dinosaurs originated from beyond Jupiter’s orbit, shedding light on a rare cosmic event that caused massive changes on Earth about 66 million years ago. Origin [...]

from SciTechDaily https://ift.tt/L4oBwl2