In a way it's getting flayed by the gravity of the black hole. The ones that we know about are rendered visible because they happen to be next to another star where they orbit each other in space and that other star in many of these cases is losing its outer gaseous material. NdT: Yeah, exactly because you can sort of accidentally stumble on it. And those could be in your way as you journey across the galaxy. Then there's a much smaller kind, in some ways a more dangerous kind, that is the end product of the life of a star. But all of best data tell us that we got one in the middle of every galaxy. Those could be up to a million times the mass of the Sun, and we don't completely understand how they form. One of them is the monstrous black holes that we find in the centers of galaxies. NdT: There are two broad categories of black holes.
So it's black and it's a hole, so we call it a black hole. And light is the fastest thing we know, so if you fall in and you can't travel faster than light, that's it, you're stuck. "synopsis" may belong to another edition of this title.NdT: If light can't come out, then it's black. Known for his ability to blend content, accessibility, and humor, Tyson is a natural teacher who simplifies some of the most complex concepts in astrophysics while simultaneously sharing his infectious excitement about our universe. And "Hollywood Nights" assails the movie industry's feeble efforts to get its night skies right. "The Search for Life in the Universe" explores astral life from the frontiers of astrobiology. "Holy Wars" examines the needless friction between science and religion in the context of historical conflicts. The title essay introduces readers to the physics of black holes by explaining the gory details of what would happen to your body if you fell into one. Here, Tyson compiles his favorite essays across a myriad of cosmic topics. Loyal readers of the monthly "Universe" essays in Natural History magazine have long recognized Neil deGrasse Tyson's talent for guiding them through the mysteries of the cosmos with stunning clarity and almost childlike enthusiasm. “One of today’s best popularizers of science.”― Kirkus Reviews. A vibrant collection of essays on the cosmos from the nation's best-known astrophysicist.
0 kommentar(er)
