Aux origines de l'humanitéSaison 40
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A weekly documentary series, each episode providing an in-depth look at a different subject of scientific research. Subjects examined by this show have included the cutting edge of theoretical physics, a return to the Chernobyl nuclear reactor, the long-term effects of Amazon deforestation, and the development of life-saving medical techniques.
Où regarder Aux origines de l'humanité • Saison 40
20 épisodes
- L'énigme de l'île de Pâques
E3L'énigme de l'île de PâquesA remote, bleak speck of rock in the middle of the Pacific, Easter Island, or Rapa Nui, has mystified the world ever since the first Europeans arrived in 1722. How and why did the ancient islanders build and move nearly 900 giant statues or moai, weighing up to 86 tons? And how did they transform a presumed paradise into a treeless wasteland, bringing ruin upon their island and themselves? NOVA explores controversial recent claims that challenge decades of previous thinking about the islanders, who have been accused of everything from ecocide to cannibalism. Among the radical new theories is that the islanders used ropes to "walk" the statues upright, like moving a fridge. With the help of an accurate 15-ton replica statue, a NOVA team sets out to test this high-risk, seemingly unlikely theory—serving up plenty of action and surprises in this fresh investigation of one of the ancient world's most intriguing enigmas. - Mission Curiosity, le grand défi sur Mars
E4Mission Curiosity, le grand défi sur MarsWhy go back to Mars? Far from dead, Mars holds untold potential. Nearly half a century of Mars exploration has yielded tantalizing clues that Mars may once have harbored life—and may harbor it still. The extraordinary landing of a revolutionary rover named Curiosity—which successfully touched down inside the Gale Crater—means we have wheels down on the planet once again, in the form of the most sophisticated robot ever to rove the Mars surface. Will NASA's bold mission and this marvel of technology answer some of our biggest questions and usher in a new golden age of exploration? NOVA goes behind the scenes on NASA’s quest to solve the riddles of the red planet. - Inside the Megastorm
E5Inside the MegastormWas Hurricane Sandy a freak combination of weather systems? Or are hurricanes increasing in intensity due to a warming climate? How did this perfect storm make search and rescue so dangerous? "Inside the Megastorm" takes viewers moment by moment through Hurricane Sandy, its impacts, and the future of storm protection. Through first person accounts from those who survived, and from experts and scientists, "Inside the Megastorm" gives scientific context to a new breed of storms. - Doomsday Volcanoes
E6Doomsday VolcanoesIn April, 2010 the eruption of Iceland's Eyjafjallajökull volcano turned much of Europe into an ash-strewn no-fly zone, stranding millions of travelers. But was Eyjafjallajökull just the start? Now, an even more threatening Icelandic volcano, Katla, has begun to swell and grumble. Two more giants, Hekla and Laki, could erupt without warning. Iceland is a ticking time bomb: When it blows, the consequences could be global. As CGI takes us inside these geological monsters, we meet atmospheric scientists who are working to understand just how devastating an eruption could be—not just for air travel but for the global food supply and for Earth's climate. - Decoding Neanderthals
E7Decoding NeanderthalsExamining evidence about Neanderthals that sheds light on the hominids, which died off some 30,000 years ago. Included: geneticist Svante Pääbo's 2010 reconstruction of the Neanderthal genome, which posits that modern humans and Neanderthals interbred at some point in the distant past. - Rise of the Drones
E8Rise of the DronesDrones. These unmanned flying robots–some as large as jumbo jets, others as small as birds–do things straight out of science fiction. Much of what it takes to get these robotic airplanes to fly, sense, and kill has remained secret. But now, with rare access to drone engineers and those who fly them for the U.S. military, NOVA reveals the amazing technologies that make drones so powerful as we see how a remotely-piloted drone strike looks and feels from inside the command center. From cameras that can capture every detail of an entire city at a glance to swarming robots that can make decisions on their own to giant air frames that can stay aloft for days on end, drones are changing our relationship to war, surveillance, and each other. And it's just the beginning. Discover the cutting edge technologies that are propelling us toward a new chapter in aviation history as NOVA gets ready for "Rise of the Drones. - Who Killed Lindbergh's Baby?
E9Who Killed Lindbergh's Baby?NOVA is reopening one of the most confounding crime mysteries of all time as a team of expert investigators employs state-of-the-art forensic and behavioral science techniques in an effort to determine what really happened to Charles Lindbergh's baby... and why. - Les chars des pharaons : Une révolution du Nouvel Empire
E10Les chars des pharaons : Une révolution du Nouvel EmpireVers 1750 avant J.-C., une nouvelle ère de puissance et de richesse s'ouvre à l'Égypte. Un âge d'or que les historiens appellent le Nouvel empire. Trois siècles durant, les pharaons vont conquérir un immense territoire, bâtissant le plus grand royaume que le monde ait connu. Quelle a été la clé d'un tel succès militaire ? Apparu quelque 1000 ans après la construction des pyramides, le char entraîne une révolution sans précédent dans l'art de la guerre. En s'appuyant sur des indices vieux de 3 000 ans, une équipe d'experts construit la réplique d'un char égyptien et le teste dans des conditions de bataille. - Earth From Space
E11Earth From Space"Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. Produced in extensive consultation with NASA scientists, NOVA takes data from earth-observing satellites and transforms it into dazzling visual sequences, each one exposing the intricate and surprising web of forces that sustains life on earth. Viewers witness how dust blown from the Sahara fertilizes the Amazon; how a vast submarine "waterfall" off Antarctica helps drive ocean currents around the world; and how the sun's heating up of the southern Atlantic gives birth to a colossally powerful hurricane. From the microscopic world of water molecules vaporizing over the ocean to the magnetic field that is bigger than Earth itself, the show reveals the astonishing beauty and complexity of our dynamic planet. - Mind of a Rampage Killer
E12Mind of a Rampage KillerWhat makes a person walk into a theater or a church or a classroom full of students and open fire? What combination of circumstances compels a human being to commit the most inhuman of crimes? Can science in any way help us understand these horrific events and provide any clues as to how to prevent them in the future? As the nation tries to understand the tragic events at Newtown, NOVA correspondent Miles O’Brien separates fact from fiction, investigating new theories that the most destructive rampage killers are driven most of all, not by the urge to kill, but the wish to die. Could suicide–and the desire to go out in a media-fueled blaze of glory–be the main motivation? How much can science tell us about the violent brain? Most importantly, can we recognize dangerous minds in time—and stop the next Newtown? - Australia's First 4 Billion Years: Awakening
E15Australia's First 4 Billion Years: AwakeningThis four part series describes the origins and diversification of life on earth with Australia as a microcosm. This episode describes the history of Earth from its initial formation through the Cambrian explosion using Australian geological formations as examples. - Australia's First 4 Billion Years: Life Explodes
E16Australia's First 4 Billion Years: Life ExplodesIn the early Paleozoic Australia is a coastal region of the super-continent Gondwana making it the scene of life's invasion of the land. But not all the action was on land as fish began to dominate the oceans and Australia has a wealth of superb fossils of early fish and other sea creatures. - Australia's First 4 Billion Years: Monsters
E17Australia's First 4 Billion Years: MonstersUntil recently there were very few known dinosaur fossils in Australia. But there are highways full of footprints which along with the recently found skeletal fossils tell uniquely Australian stories of plants, mammals, dinosaurs and other creatures. - Australia's First 4 Billion Years: Strange Creatures
E18Australia's First 4 Billion Years: Strange CreaturesThe Paleogene opens with the dinosaurs extinct and much of the world's water freezing out in Antarctica as Australia breaks free of Gondwana to chart it's own course. As in the rest of the world mammals, birds and grasses rise to prominence but with an uniquely Australian flavor. Then the first placental mammals arrive. - Oklahoma's Deadliest Tornadoes
E20Oklahoma's Deadliest TornadoesOn May 20th 2013, a ferocious F5 tornado over a mile wide tore through Moore, Oklahoma, inflicting 24 deaths and obliterating entire neighborhoods. It was the third time an exceptionally violent tornado had struck the city in 14 years. Yet predicting when and where these killer storms will hit still poses a huge challenge.
