Hugo Fruehauf, one of the inventors of GPS and a recipient of the Queen Elizabeth Prize for Engineering, tells the surprising story of how GPS was invented. Plus: learn about how planning cheat days could make your next goal easier to achieve.

Learn about why criminal profiling doesn’t seem to work in real life; planets with oceans of molten rock that basically eat the sky; and superhuman red blood cells that could be used to deliver life-saving drugs.

Learn about the 13 categories of emotions that music makes you feel; how scientists solved the mystery of two strangely small tyrannosaurus rex fossils; and surprising things that happen to a pregnant person’s body.

Learn about why your next relationship will probably be like your last one; what scientists learned by studying the oldest material on Earth; and what researchers learned when they had cuttlefish wear 3-D glasses.

Learn about why deadhead logs so rare and valuable, people actually risk their lives looking for them, from author and TV host Kevin O’Connor. Then, we’ll answer a listener question about why you feel tired after you take a long trip.  Additional resourc

Learn about common mistakes people make in the shower. Then, learn about the history and science of the two-by-four from author Kevin O’Connor, host of the home renovation television series This Old House. 5 Common Mistakes People Make In The Shower by A

Learn about why an overheard phone conversation is so distracting; how big or small a black hole can get; and why you should definitely tell your anesthesiologist if you smoke marijuana.  Why an Overheard Phone Conversation Is so Incredibly Distracting b

Learn about why we actually learn better from success than failure; why ravens are so smart, they’re making us re-think the way brains work; and why reaching a temperature of absolute zero is absolutely impossible. You Learn Better from Success than Fail

Learn about a trick for conquering sadness by thinking of it as a person; how Neanderthals may have releived their pain with a familiar drug; and the surprising science of how cows each use a unique “voice” to talk to each other.  Think of Sadness as a P

Learn about how AI and Twitter could help you find the perfect job, and how the world is actually a greener place than it was 20 years ago. We’ll also answer a listener question about why we use the color “blue” to say we’re sad. Job-Matching with Your T