Scavengers in the Yellowstone, home to over 400 species, can gorge on nearly 40 tons of rotting elk during harsh winters. It's a dirty job, but someone's got to be nature's janitors. Casey is setting up a carcass stakeout to discover what happens to all the Yellowstone wildlife after death. Since turkey vultures can smell a carcass up to 12 miles away, he uses them to help him find animal carcasses to observe how they are devoured and by which ravenous creature.
Ravaged by looters, earthquakes and erosion, the Step Pyramid of Saqqara is falling apart. Can experts win the race to save this precious pyramid and preserve its treasures?
It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is a staggering 27 million degrees Fahrenheit. It convulses, it blazes, it sings. You know it as the sun. Scientists know it as one of the most amazing physics laboratories in the universe. Now, with the help of new spacecraft and Earth-based telescopes, scientists are seeing the sun as they never have before and even recreating what happens at its very center in labs here on Earth. Their work will help us understand aspects of the sun that have puzzled scientists for decades. But more critically, it may help us predict and track solar storms that have the power to zap our power grid, shut down telecommunications, and ground global air travel for days, weeks, or even longer. Such storms have happened before—but never in the modern era of satellite communication. "Secrets of the Sun" reveals a bright new dawn in our understanding of our nearest star—one that might help keep our planet from going dark.
A natural history film or wildlife film is a documentary film about animals, plants, or other non-human living creatures, usually concentrating on film taken.
What begins as a star’s cataclysmic explosion in a violent supernova results in one of the most mysterious phenomena in our universe: a black hole. Black holes are the makings of science fiction, with fantasies of tunnel passageways that travel through space and time dominating the imagination. Nothing survives a black hole; it's gravitational pull twists space and time into a furious knot so strong that not even light can escape, making the likelihood of locating a passageway inside almost impossible. Are black holes a rare freak of nature or does the universe hide many of these mysterious phenomena? 125 billion galaxies make up the visible universe, with every major galaxy housing a black hole. Indeed, even our own Milky Way harbours a super-massive black hole, 50 million kilometres wide at the very centre of the galaxy. What role do black holes play in attracting matter together within the spider’s web of gas and galaxies? And, with their voracious appetites, what’s to prevent a black hole from wiping out solar systems like our own?
What begins as a star’s cataclysmic explosion in a violent supernova results in one of the most mysterious phenomena in our universe: a black hole. Black holes are the makings of science fiction, with fantasies of tunnel passageways that travel through space and time dominating the imagination. Nothing survives a black hole; it's gravitational pull twists space and time into a furious knot so strong that not even light can escape, making the likelihood of locating a passageway inside almost impossible. Are black holes a rare freak of nature or does the universe hide many of these mysterious phenomena? 125 billion galaxies make up the visible universe, with every major galaxy housing a black hole. Indeed, even our own Milky Way harbours a super-massive black hole, 50 million kilometres wide at the very centre of the galaxy. What role do black holes play in attracting matter together within the spider’s web of gas and galaxies? And, with their voracious appetites, what’s to prevent a black hole from wiping out solar systems like our own?
