It's called the speed limit of the universe. Einstein blew all of our minds when he worked out the Theory of Relativity, and showed that space and time were malleable substances. He also theorized that we as humans can never travel faster than the speed of light, which leaves the stars and other galaxies almost impossibly out of our reach. But the dreams of Star Wars and Star Trek are not dead. In fact, there could be ways to travel faster than the speed of light - and some of them are already being tested in labs around the world.
Quantum theory, the best explanation of how atoms and anything smaller behave, is so weird even scientists who have mastered it find it baffling. But bit by bit scientists are finding maybe it's not so weird as comparable behavior is discovered in our every day world. It's just that no one noticed before.
Our minds store our entire lives, our memories and our deepest desires. Tell no one, and our thoughts remain our own. But our brains are biological computers. Computer hackers can tamper with our email. Could brain hackers someday be able to rewrite our thoughts?
Death is life's greatest certainty. But that may be about to change. Scientists have discovered an immortal animal that may hold the secret of endless regeneration. They're on the brink of editing our DNA so that we can cure death like a disease. Or is dying necessary for the survival of our species?
2017 • Science
Every 17 minutes in America, someone is killed with a gun. Politicians can't seem to stop the violence. But epidemiologists, psychologists and big data crunchers are discovering that gun crime spreads like a virus -and science may be able to stop its spread.
2017 • Science
Steve Backshall tries to discover just what makes it possible for a river to stop in the middle of a desert. The Okavango is the world's largest inland delta and home to a one of Africa's greatest congregations of wildlife, and in asking the difficult questions Steve reveals the astounding secret to its existence.
Helen looks at the latest scientific insight into the aurora - dancing lights in the night sky that have fascinated cultures throughout our history. From the networks of cameras now capturing its vast scale, to novel experiments that probe the threat it poses to modern technology, Helen reveals the dramatic transformation in our understanding of the aurora, and the many mysteries that remain to be solved.
Our body is a true time machine. It is a mirror of the history of the living world. If an engineer today had to fabricate the ideal human, he would most likely not design us the way we are currently made. He would go to the most logical, the most efficient, the most rational; and when you look closely, this is not always what characterizes us.
Armed with the latest global scientific research, Chris Packham and Liz Bonnin battle it out to find the definitive answer to the burning question - which are best, cats or dogs? Part 1: The animals go head to head in a series of rounds testing different aspects, beginning in this edition with intelligence, sensory powers and physical prowess. On the search for answers, dog-lover Chris comes face to face with a pack of wolves, while feline fan Liz confronts an Arabian wild cat to discover how the relationship humans and their pets have evolved.
An elaborate river portrait-in this case of one of the greatest rivers of Europe. An epic journey of discovery into the continent's unknown wild lands, "Danube - Europe's Amazon" shows how the river's famous currents helped sculpt the incredible landscapes, and it links them together.
What the Judean Desert lacks in size, it makes up for in extreme features: it's home to the lowest sea in the world, dazzling salt formations, and an array of plant and animal life. Watch the Arabian leopard, striped hyena, and other fascinating and resourceful creatures thrive against a backdrop of sun and sand.