Perhaps the most famous thing about the dinosaurs is the giant space rock that seemingly killed them. Also known as the Chicxulub impact, or the K-Pg event, most people are familiar with the major crash roughly 66 million years ago after a comet or asteroid collided with our planet.
It was one of the most violent upheavals in Earth's entire 4 billion year history. The collision was so massive, it killed approximately 60 percent of life in the oceans and wiped out the non-avian dinosaurs, as well as killing most four-legged animals over 25 kilograms (55 pounds). Though it was massively destructive, in the process, the K-Pg event cleared the way for modern life forms to evolve, including us humans.
