Three million years ago, camels roamed through Greenland’s endless forests and our ancestors lived in the trees. It all came to an end with the Ice Ages. What died and what survived, as natural selection shaped the evolutionary tree during this epochal shift from hot to cold? Until now, scientists have known less about the natural world before the Ice Age than they did about the age of dinosaurs, which ended 64 million years ago. A new discovery is set to reveal this lost world, species by species. Led by Danish gene-hunter Eske Willerslev, a team of scientists for the first time in history is sequencing DNA from before the Ice Age. The picture that emerges is of a hot planet, when forests blanketed the Arctic and carbon levels matched those in our atmosphere today. Is this a portrait of our own climate future?
28 Aug 2021
Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Earth. Today, Earth's twin is a planet knocked upside down and turned inside out. Its burned-out surface is a global fossil of volcanic destruction, shrouded in a dense, toxic atmosphere. Scientists are now unveiling daring new strategies to search for clues from a time when the planet was alive.
29 Jul 2013
What is true and what is false in the hideous stories spread about the controversial figure of the Roman emperor Gaius Julius Caesar Augustus Germanicus (12-41), nicknamed Caligula? Professor Mary Beard explains what is accurate and what is mythical in the historical accounts that portray him as an unbalanced despot. Was he a sadistic tyrant, as Roman historians have told, or perhaps the truth about him was manipulated because of political interests?
09 Aug 2024
Embark on a delightful journey into the world of dogs in this documentary that reveals scientific and emotional insights about our lovable BFFs.
19 Jan 1991
Ring of Fire is about the immense natural force of the great circle of volcanoes and seismic activity that rings the Pacific Ocean and the varied people and cultures who coexist with them. Spectacular volcanic eruptions are featured, including Mount St. Helens, Navidad in Chile, Sakurajima in Japan, and Mount Merapi in Indonesia.
24 Nov 2019
Forensic experts scan Pompeii’s victims to investigate why they didn’t escape the eruption.
12 Mar 2022
Although a real awareness of the populations is underway - the multiplication of natural disasters and heat records helping - the human activities responsible for global warming remain unchanged, as if the threat was unreal. This collective immobility could have its origin in the brain. A number of cognitive biases impede judgment.
28 Feb 2014
Professor Niall Ferguson argues that Britain's decision to enter the First World War was a catastrophic error that unleashed an era of totalitarianism and genocide.
28 Dec 2022
No overview found
26 Apr 2024
Delve into the digestive system with this lighthearted and informative documentary that demystifies the role gut health plays in our overall well-being.
21 Jan 2003
Many geneticists and archaeologists have long surmised that human life began in Africa. Dr. Spencer Wells, one of a group of scientists studying the origin of human life, offers evidence and theories to support such a thesis in this PBS special. He claims that Africa was populated by only a few thousand people that some deserted their homeland in a conquest that has resulted in global domination.
14 Jan 2003
Oliver is a chimpanzee who not only can walk upright, but does of his own accord. For years there have been debate's over Oliver's identity. All those who know Oliver swear that he is at least somewhat human. Is Oliver a chimpanzee and human hybrid, a well trained chimpanzee, or something altogether different?
17 Sep 2016
99% of the plastic that should be floating in the oceans is missing. Even accounting for the plastic that washes up on beaches or is trapped in arctic ice, millions of tonnes has simply disappeared. As most plastic never deteriorates, it simply breaks down into smaller and smaller particles that are invisible to the human eye, what happens to this missing ocean plastic is a mystery. In this investigation, scientists embark in search of the micro-plastics. Small, mostly invisible, toxic, they are home to the new ecosystem: the plastisphere. But where are they? Ingested by organisms? Buried under the ocean floor? Degraded by bacteria? And what is the impact of them entering the food chain?
24 Mar 2009
Twenty years after A Brief History of Time flummoxed the world with its big numbers and black holes, its author, Stephen Hawking, concedes that the "ultimate theory" he'd believed to be imminent - which would conclusively explain the origins of life, the universe and everything - remains frustratingly elusive. Yet despite his failing health and the seeming impossibility of the task, Hawking is still devoted to his work; an extraordinary drive that's captured here in fleeting interview snippets and footage of the scientist sharing a microwave dinner with some fawning PhD students. Though the pop-science tutorials that dapple the first of this two-part biography are winningly perky, Hawking, alas, remains as tricky to fathom as his boggling quantum whatnots
22 Apr 2025
If the ice sheet covering Greenland melted, global sea levels would rise 21 feet, profoundly impacting our planet. How, why, and when could this happen? A few years ago, scientists found lost sediment from a secret sub-ice Cold War base in the Arctic from the 1960s that holds clues to a time when Greenland Ice Sheet was gone. The Memory of Darkness, Light, and Ice is an hour-long documentary about the discovery of this sediment and the critical implications of the science to our future. The finding that the ice sheet melted in the past completely transforms our understanding of the stability of the Greenland Ice Sheet.
14 Jun 2025
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08 Mar 2023
Joe Kenda's investigation into the brutal rape and murder of 24 year old wife and mother Mary Lynn Vialpando goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.
25 Feb 2023
From the far north of Canada to the southern tip of Chile, through the southern United States, central Mexico and the Brazilian Mato Grosso, new concordant but still controversial archaeological discoveries have brought a new paradigm to the archaeology of American prehistory: the appearance of the first humans on the continent could date back to nearly 30,000 years before our era, that is to say, about 15,000 years earlier than the commonly accepted and taught thesis. Although there were a few mavericks in the past who disputed the scenario according to which the first ancestors of Americans arrived on foot through the Bering Strait 16,000 years ago, they were long kept out of the scientific community.
21 Jan 2023
They have no roots, no seeds, no flowers, but mosses show immense survival capacities and can suspend their biological activity for long periods. Today, researchers are exploring the exceptional resistance of these archaic organisms. British ecologists have even resurrected a "zombie" moss that has been trapped in the permafrost for 1,500 years. Associated with decay and disliked in Europe, mosses are deified in Japan. With 25,000 species worldwide, bryophytes - their scientific name - are the seat of real ecosystems, and can develop in inhospitable landscapes, through an extravagant reproduction cycle.
15 Jun 2024
Follow three rocket and satellite companies – Astra Space, Rocket Lab, and Planet Labs – and the quests of their idiosyncratic founders to conquer the burgeoning space industry.
23 Jan 2020
Five times, Earth has faced apocalyptic events that swept nearly all life from the face of the planet. What did these prehistoric creatures look like? What catastrophes caused their disappearance? And how did our distant ancestors survive and give rise to the world we know today?