Did Dark Matter Doom the Dinosaurs?

Dark matter makes up over a quarter of the universe. It’s also invisible and difficult to directly detect. In her new book Dark Matter and the Dinosaurs, physicist Lisa Randall shares a theory that a disc of dark matter could have been responsible for the catastrophic collision that extinguished the dinosaurs.

Read an excerpt from Randall’s book here. And for more on dark matter, check out this spotlight.