探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit08 In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black h...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit07 When it's feeding, a giant black hole creates a bright burning gas disk around it and then for some reason, it stops feeding, leaving a dark, deadly core lurking menacingly in t...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit06 When the results came down from the telescope he saw something that was completely unexpected. The picture from the active galaxy where he hoped to find a black hole was unreada...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit05 By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a galaxy nearby which is called NGC 10...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit04 This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally fee...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit03 A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Nothing can escape it, not even light its...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit02 But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to explain how a single one of these galaxies...
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit01 In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like th...
It seems these days mobile phone technology can do just about anything, even help scientists learn more about the sex life of a koala. The bellows of male koalas may sound a bit raucous, but the team says so far data appears to indicate the calls may...
Wild life experts are trying to figure out why sick, disoriented and bruised California brown pelicans are being found in record numbers up and down the west coast of North America. The birds, some of them dead, have been spotted from Washington Stat...
Divers in Budapest, Hungary has spent the last few weeks exploring the depth of what may be one of the biggest underground lakes in the world. The huge subterranean thermal lake was discovered in early 2008 and in a cave complex below a Turkish bath....
Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea-and-land animals, near the tip of the Antarct...
It's an island known for its rich cultural history and environmental treasures but human activities such as tourism and deforestation threaten some of Cubas key habitats, which is why the World Wildlife Funds Julia Langer collaborates with local part...
In 1831, naturalist Charles Darwin set out on a voyage to the Pacific aboard the HMS Beagle. Darwin arrived in Brazil in 1832, and began documenting the enormous biodiversity of the rainforest of Rio de Janeiro province. In his diary, he mentions par...
In Fontanelle, Italy, a large ancient cemetery with an unusual history is about to reopen. It is a place where the living try to reconnect with lost loved ones through the skulls of strangers. The site is an ancient rock quarry. Ancient Greeks mined...
