Secrets of the Sun Nova National Geographic Special Full
DESCRIPTION:
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.
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.
