Image citation: Phys. Teach. 52, 521 (2014); https://dx.doi.org/10.1119/1.4902192
One of Snow's hobbies is learning about the extinction of the dinosaurs and other mass extinctions in the history of the earth. Together we will examine the theory that an asteroid or comet the size of Mt. Everest struck Mexico's Yucatan Peninsula 65 million year ago, creating a dust cloud that altered the earth's climate and killed the dinosaurs and 70 percent of all other living species. We'll also review other dinosaur extinction theories, which range from believable to preposterous, as put forth in the lively scientific debate surounding their demise.