The Last Day of the Dinosaurs, Told by Moonlight | Sleep Documentary (No Ads)

🌙 Sixty-six million years ago, a mountain fell from the sky, and in a single day the world of the dinosaurs began to end. Tonight we follow the clues that day left in the rocks, slowly, in a calm sleep documentary with no ads in the middle. Soft narration, gentle visuals, and one hour of relaxing ambience after the story so you can stay asleep. 🔔 Subscribe for a new sleep documentary every week:    / @thesleepdocumentarychannelusa   👍 If this helped you rest, a like helps the channel more than you know. 💬 Tell me in the comments: where are you listening from tonight? ⏱️ CHAPTERS 00:00 A mountain falls from the sky 00:44 The last green evening of the Cretaceous 08:09 A thin line of clay in the hills of Italy 14:52 The search for the hidden crater 21:52 The day the sky fell 29:17 The long dark years 36:57 Small survivors and a new dawn 44:39 Written in stone: the rocks remember 51:34 One hour of relaxing prehistoric ambience for sleep 😴 WHO THIS IS FOR People who fall asleep to documentaries, anyone who wants to learn something calm before bed, listeners who like a slow, quiet voice, and anyone curious about dinosaurs, deep time, asteroids and the history of life on Earth. 📚 SOURCES & RESEARCH This script was written from published science, including the 1980 iridium study by Luis and Walter Alvarez, Frank Asaro and Helen Michel (Science), the 1991 identification of the Chicxulub crater by Alan Hildebrand and colleagues (Geology), the 2010 international review of the Chicxulub impact and the end-Cretaceous extinction (Schulte et al., Science), the IODP-ICDP Expedition 364 drilling of the Chicxulub peak ring, fossil research from the Hell Creek Formation and the Tanis site in North Dakota, the Gubbio and Stevns Klint boundary sections, studies of the Deccan Traps, and NASA's Double Asteroid Redirection Test (DART). Numbers are rounded for easy listening, and where scientists still disagree (for example, about the role of the Deccan volcanoes) the narration says so. 🎬 ABOUT THE VISUALS The first ten clips are licensed stock footage from Vecteezy. All other images and video clips are AI-generated illustrations made for this film; they are artistic impressions, not real photographs. The narration uses a synthetic voice. ©️ COPYRIGHT Script, narration and edit © The Sleep Documentary Channel. Please do not re-upload. You are welcome to share the link. 🔎 KEYWORDS sleep documentary, documentary for sleep, sleep documentary no ads, fall asleep to a documentary, boring documentary for sleep, calm documentary, relaxing documentary, bedtime documentary, sleep story for adults, soft spoken documentary, dinosaur documentary, dinosaur sleep documentary, the last day of the dinosaurs, dinosaur extinction, how did the dinosaurs die, asteroid that killed the dinosaurs, Chicxulub crater, Chicxulub impact, K-Pg extinction, KT boundary, Cretaceous extinction, mass extinction, iridium layer, Alvarez hypothesis, Gubbio Italy, Yucatan Peninsula, impact winter, Deccan Traps, Hell Creek Formation, Tanis fossil site, Tyrannosaurus rex, Triceratops, Edmontosaurus, Ankylosaurus, Quetzalcoatlus, pterosaurs, Late Cretaceous, Paleocene, survival of mammals, birds are dinosaurs, shocked quartz, tektites, tsunami, asteroid impact, meteor impact, DART mission, planetary defense, deep time, paleontology for sleep, earth science for sleep, history of life on Earth, prehistoric world, science for sleep, nature documentary for sleep, insomnia relief, relaxing narration, calm voice, sleep aid, background documentary, study and relax, told by moonlight, the sleep documentary channel, long documentary for sleeping, two hour sleep video, relaxing ambience, prehistoric ambience, forest night ambience #sleepdocumentary #dinosaurs #documentaryforsleep #chicxulub #sleepstory #relaxingdocumentary #bedtimedocumentary #asteroid #fallasleep #noads