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Black hole - Wikipedia
https://en.wikipedia.org/wiki/Black_hole
Web ResultA black hole is a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, is capable of possessing enough energy to escape it. Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
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What Are Black Holes? - NASA
https://www.nasa.gov/universe/what-are-black-holes/
Web ResultSep 8, 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos.
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Black hole | Definition, Formation, Types, Pictures, & Facts
https://www.britannica.com/science/black-hole
Web Result2 days ago · Black 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.
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What Is a Black Hole? - National Geographic
https://www.nationalgeographic.com/science/article/black-holes
Web ResultThere are four types of black holes: stellar, intermediate, supermassive, and miniature. The most commonly known way a black hole forms is by stellar death. As stars reach the ends of their...
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Black holes: Everything you need to know | Space
https://www.space.com/15421-black-holes-facts-formation-discovery-sdcmp.html
Web ResultMay 6, 2022 · Black holes are some of the strangest and most fascinating objects in space. They're extremely dense, with such strong gravitational attraction that not even light can escape their grasp. The...
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Black Holes - Science@NASA
https://science.nasa.gov/universe/black-holes/
Web ResultBlack 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 …
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Black Holes | Center for Astrophysics | Harvard & Smithsonian
https://www.cfa.harvard.edu/research/topic/black-holes
Web ResultBlack holes are some of the most fascinating and mind-bending objects in the cosmos. The very thing that characterizes a black hole also makes it hard to study: its intense gravity. All the mass in a black hole is concentrated in a tiny region, surrounded by a boundary called the “event horizon”.
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NASA Telescopes Discover Record-Breaking Black Hole
https://www.nasa.gov/missions/chandra/nasa-telescopes-discover-record-breaking-black-hole/
Web ResultNov 06, 2023. Astronomers have discovered the most distant black hole yet seen in X-rays, using NASA telescopes. The black hole is at an early stage of growth that had never been witnessed before, where its mass is similar to that of its host galaxy. This result may explain how some of the first supermassive black holes in the …
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Black Holes 101 | National Geographic - YouTube
https://www.youtube.com/watch?v=kOEDG3j1bjs
Web ResultSep 20, 2018 · 86K. 7.4M views 5 years ago #BlackHoles #NationalGeographic #Educational. At the center of our galaxy, a supermassive black hole churns. Learn about the types of black holes, how they form,...
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What Is a Black Hole? | NASA Space Place – NASA Science for …
https://spaceplace.nasa.gov/black-holes/en/
Web Result2 days ago · A black hole is an area of such immense gravity that nothing—not even light—can escape from it. Black holes form at the end of some stars’ lives. The energy that held the star together disappears and it collapses in on itself producing a magnificent explosion. Here’s where things get crazy.
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