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The main light source from a black hole is a structure called an accretion disk. 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.
28 Δεκ 2016 · Learn about the mysteries and theories of the singularity, the event horizon, and the tidal forces inside a black hole. Find out what would happen if you fell into a black hole and how to observe one.
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.
23 Νοε 2020 · Learn what a black hole is, how it forms, and what it would be like to fall into one from NASA experts. Explore the extreme gravity, the singularity, and the light shows of these cosmic objects.
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10 Μαΐ 2024 · Nasa has released footage simulating what it's like being sucked into a black hole, a region of space with such strong gravity not even light can escape.
2 ημέρες πριν · 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.
Black holes can be surrounded by rings of gas and dust, called accretion disks, that emit light across many wavelengths, including X-rays. A supermassive black hole’s intense gravity can cause stars to orbit around it in a particular way.
