![[A large fireball is being hurtled toward the earth as two small dinosaurs look on, possibly in fear.]](https://blogs.iu.edu/sciu/files/2023/02/dinosaur-ge5014d187_1920.jpg)
If you ask almost any kid today how the dinosaurs died, they’ll tell you an asteroid killed them, but this didn’t used to be the leading theory. When you look at key papers about the asteroid impact the kids are referring to, you’ll learn that it defined the transition from the Cretaceous to the Paleogene (K-Pg) boundary ~66 million years ago. Before the discovery of the asteroid, there wasn’t a single agreed upon theory on what caused the 5th global mass extinction…