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1. en.wikipedia.org › wiki › Black_holeBlack hole - Wikipedia

   en.wikipedia.org › wiki › Black_hole

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   A 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.

2. www.nasa.gov › universe › what-are-black-holesWhat Are Black Holes? - NASA

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   8 wrz 2020 · Learn about the three main classes of black holes: stellar-mass, intermediate-mass and supermassive. Find out how they form, grow, emit and interact with their surroundings.

3. science.nasa.gov › universe › black-holesBlack Holes - NASA Science

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   A black hole is so dense that gravity just beneath its surface, the event horizon, is strong enough that nothing – not even light – can escape. The event horizon isn’t a surface like Earth’s or even the Sun’s. It’s a boundary that contains all the matter that makes up the black hole.

4. www.britannica.com › science › black-holeBlack hole | Definition, Formation, Types, Pictures, & Facts |...

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   4 dni temu · 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.

5. science.nasa.gov › universe › 10-questions-you-might-have-about-black-holes10 Questions You Might Have About Black Holes - Science@NASA

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   23 wrz 2019 · A black hole is an extremely dense object in space from which no light can escape. While black holes are mysterious and exotic, they are also a key consequence of how gravity works: When a lot of mass gets compressed into a small enough space, the resulting object rips the very fabric of space and time, becoming what is called a singularity.

6. science.nasa.gov › universe › black-holesBlack Hole Anatomy - Science@NASA

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   Black holes grow by consuming matter, a process scientists call accretion, and by merging with other black holes. A stellar-mass black hole paired with a star may pull gas from it, and a supermassive black hole does the same from stars that stray too close.

7. www.nationalgeographic.com › science › articleWhat Is a Black Hole? - National Geographic

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   Black holes are points in space that are so dense they create deep gravity sinks. Beyond a certain region, not even light can escape the powerful tug of a black hole's gravity.