S52 E3 - 53m 40s
Why are birds the only dinosaurs still alive today? Rare fossil discoveries are revealing the secrets of bird evolution, telling the story of how some resilient feathered dinos became the vast array of colorful bird species that fill our skies.
S52 E1 - 53m 43s
After decades in the shadows, UFOs are being studied seriously. Are they weather balloons, optical illusions, secret military technology? Or something else? Follow scientists as they try to unravel the mystery of the strangest objects in our skies.
S51 E18 - 53m 40s
After the Notre Dame fire in 2019, two mysterious coffins were found buried beneath its floor. Where did they come from and who was inside? Follow scientists and historians as they investigate what their stories reveal about this iconic cathedral.
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