Crawl into the Maya underworld, where science meets spirits, shamans, and snakes. A long-forgotten cave could shed light on one of history's most enduring questions: why did the ancient Maya collapse? For more information on this episode, visit https://www.nationalgeographic.com/podcasts/overheard
One of National Geographic's writers was hard to pin down for a while. That's because she was in Sudan, scuba diving underneath a pyramid. We had so many questions for her-especially once she shared with us that the contents of the pyramid could fundamentally change what we understand about ancient Egypt's 25th dynasty. For more information on this episode visit nationalgeographic.com/overheard
How did an ancient Roman harbor end up in ruins? Scientists realized the culprit was a long-forgotten natural disaster that left tell-tale geological clues -- and possibly an eyewitness account in an ancient religious text. But solving this mystery led to a bigger question: what if it happens again? For more information on this episode visit nationalgeographic.com/overheard
Half a mile below the surface of the earth, in a cave too hot to explore without an ice-packed suit, NASA scientist and Nat Geo explorer Penny Boston clambers around glassy crystals that are taller than telephone poles and wider than dinner tables. But it's not The Crystal Cave's grandeur she's interested in -- it's what may be hibernating inside the crystals. Astrobiologists like Penny Boston scour the Earth's most hostile environments for microorganisms, to see if they ...
What if women had been among the first to head to the moon? A NASA physician thought that wasn't such a far fetched idea back in the 1960s. He developed the physical and psychological tests used to select NASA's first male astronauts, and ran those same test on women, who thought their performance punched their ticket to the moon. We'll hear about what happened from two of the women involved. For more information on this episode visit nationalgeographic.com/overheard
What do tigers, sloths, elephants and bears have in common? They're all part of the incredibly lucrative captive wildlife tourism industry. Travelers from around the world clamor for opportunities to pose with these magnificent creatures and get that perfect selfie. This week - we look at the complicated nature of elephant tourism in Thailand. For more information on this episode, visit nationalgeographic.com/overheard