Synonyms for black hole at thesauruscom with free online thesaurus, antonyms, and definitions find descriptive alternatives for black hole. So down we goes into a black hole that yawns in the middle of a muddy field it will be the 'black hole of calcutta' downstairs, she remarked roddy raced to the sound and saw in the wall a gaping, black hole.
Peppered throughout the universe, these stellar mass black holes are generally 10 to 24 times as massive as the sun astronomers spot them when another star draws near enough for some of the matter surrounding it to be snared by the black hole's gravity, churning out x-rays in the process. Black holes are areas in space, where gravity is so strong that nothing, not even light, can escape from them black holes are thought to be formed by collapsed stars.
A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it the theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. A black hole is a place in space where gravity pulls so much that even light cannot get out.
Black holes are some of the strangest and most fascinating objects found in outer space they are objects of extreme density, with such strong gravitational attraction that even light cannot. At an inauguration attended by government officials and foreign dignitaries, mr camilo released new images taken by meerkat of the region surrounding the supermassive black hole at the center of the milky way galaxy, some 25,000 light years away. In astrophysics, 1968, probably with awareness of black hole of calcutta, incident of june 19, 1756, in which 146 british pows taken by the nawab of bengal after the capture of ft william, calcutta, were held overnight in punishment cell of the barracks (meant to hold 4 people) and all but 23 perished. The black hole’s existence can be inferred from its energetic effects on an envelope of gas swirling around it at extremely high velocities even larger black holes with masses equal to 10 billion suns have been observed in ngc 3842 and ngc 4889, galaxies that are near to the milky way.
Here's how dense a black hole is: the sun has a diameter of about 864,000 miles (1,391,000 kilometers) for it to be as dense as a black hole, its entire mass would have to be squeezed down to a ball less than two miles across. Black holes are extremely dense: for the sun, which has a diameter of about 1,390,000 kilometers (862,000 miles), to be as dense as a black hole, its entire mass would have to be squeezed down to a ball fewer than 3 kilometers (5 miles) across.
One of the strangest objects in the universe is the burnt-out remnant of a large star, known as a black hole the name comes from the fact that the star collapses into itself, becoming so dense that its gravitational pull keeps even light from escaping. The term black hole was coined in 1967 by american astronomer john wheeler, and the first one was discovered in 1971 there are three types: stellar black holes, supermassive black holes and intermediate black holes stellar black holes — small but deadly when a star burns through the last of its fuel, it may collapse, or fall into itself.
Black holes are some of the strangest and most mysterious objects in the universe billions of them may exist in the milky way alone but what, exactly, is a black hole. The standard signal of merging black holes is a chirp, named for the increase in frequency and amplitude of the gravitational waves produced as the black holes spiral inward how to make black holes 'sing': certain mergers would create odd gravitational wave signals.