The Grand Canyon is beautiful, no matter what rim you see it from, but its history is even more mesmerizing. How the canyon was formed, how old the rocks are, and what the layers mean inside only make the national park more fascinating. In this episode, we hear from two UNM Distinguished Professors, Laura Crossey and Karl Karlstrom, experts on the Grand Canyon who are essentially rewriting textbooks with their new research on the beloved national treasure. To help better understand the concept of time, Karlstrom and Crossey created a geological timeline exhibit at the Grand Canyon for visitors young and old to walk nearly 2 billion years of Canyon history while getting up close and personal to the rocks inside of it.

Learn more about the Grand Canyon's exhibit, Trail of Time.

Visit podcast.unm.edu to learn more about It’s (Probably) Not Rocket Science.