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What is a black hole and how did we discover them? Fiction depicts black holes as yawning voids that lurk in deep space, gobbling up anything in their path, but how does science explain these 'dark stars'? Brian Clegg. Published: July 4, 2020 at 5:48 am. Black holes have escaped from astrophysics into the everyday imagination.
The first black hole known was Cygnus X-1, identified by several researchers independently in 1971. [9][10] Black holes of stellar mass form when massive stars collapse at the end of their life cycle. After a black hole has formed, it can grow by absorbing mass from its surroundings.
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.
Astronomers tracked the orbits of several stars near the center of the Milky Way to prove it houses a supermassive black hole, a discovery that won the 2020 Nobel Prize. When very massive objects accelerate through space, they create ripples in the fabric of space-time called gravitational waves.
6 Μαΐ 2022 · Who discovered black holes? Black holes were predicted as an exact mathematical solution to Einstein's equations. Einstein's equations describe the shape of space around matter.
How were black holes discovered? The first inkling that anyone had about black holes came in 1930, when young astrophysicist Subrahmanyan Chandrasekhar was mulling over the consequences of several recent discoveries, including Einstein’s theory of special relativity.
8 Σεπ 2020 · The origin of supermassive black holes is poorly understood, but we know they exist from the very earliest days of a galaxy’s lifetime. Once born, black holes can grow by accreting matter that falls into them, including gas stripped from neighboring stars and even other black holes.
