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Bookmark or Share- Black hole - WikipediaA black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.
- Black hole | Definition, Formation, Types, Pictures, & Facts - BritannicaBlack hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.
- Black Holes - NASA ScienceBlack holes are among the most mysterious cosmic objects, much studied but not fully understood. These objects aren’t really holes. They’re huge concentrations of matter packed into very tiny spaces. A black hole is so dense that gravity just beneath its surface, the event horizon, is strong enough that nothing – not even light – can ...
- Hubble Black Holes - NASA ScienceHubble’s observations opened the door to a universe full of black holes, pinpointing dazzling bright, black hole-powered galactic nuclei called “quasars” at the centers of galaxies and making the first-ever confirmation of the presence of a suspected supermassive black hole at the center of a galaxy.
- Black Holes | Center for Astrophysics | Harvard & SmithsonianSupermassive Black Holes are the monsters of the universe, living at the centers of nearly every galaxy. They range in mass from 100,000 to billions of times the mass of the Sun, far too massive to be born from a single star. The Milky Way’s black hole is about 4 million times the Sun’s mass, putting it in the middle of the pack.
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