A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.
Black Hole Temperature taking the temperature of black holes bbc news Black Hole Temperature .
Black Hole Temperature realistic schwarzschild black hole image with flux Temperature Hole Black .
Black Hole Temperature mathspace black holes and accretion disk temperatures Hole Black Temperature .
Black Hole Temperature scientists just took the temperature of a lab made black hole Black Temperature Hole .
Black Hole Temperature are black holes hot or cold bbc science focus magazine Black Temperature Hole .
Black Hole Temperature backreaction hawking temperature of black holes measured Black Hole Temperature .
Black Hole Temperature college of charleston professor discovers new information Hole Temperature Black .
Black Hole Temperature mathspace black holes and gas temperature Hole Temperature Black .
Black Hole Temperature black holes39 cold temperature may help make worlds Black Temperature Hole .
Black Hole Temperature what is the theoretical temperature of singularity of Hole Temperature Black .
Black Hole Temperature standard temperature of de sitter kerrnewman black holes Hole Temperature Black .
Black Hole Temperature scientists measures temperature swings of black hole winds Hole Temperature Black .
Black Hole Temperature 17 images that tell the story of sandy slamming the east Black Temperature Hole .
Black Hole Temperature hawking radiation from a sonic black hole had its Hole Temperature Black .
Black Hole Temperature the temperature versus the black hole mass for the case α Temperature Black Hole .
Black Hole Temperature temperature of black hole and hawking radiation wrytin Black Hole Temperature .
Black Hole Temperature fyron39s quadrant mod 5 Temperature Black Hole .
Black Hole Temperature creating hawking radiation in a tabletop black hole Hole Black Temperature .
Black Hole Temperature temperature of black hole and hawking radiation wrytin Hole Black Temperature .
Black Hole Temperature what is the theoretical temperature of singularity of Hole Black Temperature .
Black Hole Temperature how do you weigh a supermassive black hole take its Hole Temperature Black .
Black Hole Temperature scientists claim incredibly small stars emerge from black Temperature Hole Black .
Until 2004, no spacecraft had visited Saturn for more than twenty years. Pioneer 11 took the very first close-up images of Saturn when it flew past in 1979. After that flyby, Voyager 1 had its rendezvous about a year later, and in August 1981 Voyager 2 had its brief, but glorious, encounter. Nearly a quarter of a century then passed before new high-resolution images of this beautiful, ringed planet were beamed back to Earth. Earth's Moon is enchanting; bewitching. The face of the "man"--that some cultures see etched on its brilliant surface--is really composed of the dark areas of the lunar maria (Latin for "seas"), and the lighter highlands of the Moon's surface. Some cultures tell of other examples of strange images seen on the Moon's lovely disk, such as the "Moon Rabbit". Second, there is the issue of sharing wealth. The Third World wants to redistribute wealth in its favor, and it pursues this end by a combination of moral persuasion and threats of terrorism using weapons of mass destruction. A frontier could make such threats less persuasive. The Third World reaction to a space frontier initiative is unpredictable and possibly violent. This makes pioneering a taboo for Western governments. And that's why they would keep it secret.