Say it with us: mitochondria are the powerhouse of the cell. On this episode, Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly discover the original horse power, equine physiology, and the science behind the Kentucky Derby. NOTE: StarTalk+ Patrons can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/show/horsepower-with-dr-sarah-white-springer/Thanks to our Patrons Cosmic Scapegoat, Tom Kearns, Valeri Williams, Zeki Majed, Ethan Fink, Mariano Quiroga, John Marc Roberson, Fredrik Östervald, Crimson, and Colt for supporting us this week.Photo Credit:  Bill Brine, CC BY 2.0, via Wikimedia Commons