WHAT ARE BLACK HOLES?
By The News Voice
Black holes are some of the strangest and most fascinating objects in outer space.
Black holes are extremely dense, with such strong gravitational attraction that even light cannot escape their grasp if it comes near enough.
In some cases, black holes are former massive stars that have been crushed to an extreme density during supernova explosions. In few cases, black holes contain the mass of millions or billions of stars.
Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. The term "black hole" was coined many years later in 1967 by American astronomer John Wheeler.
It was after decades of black holes being known only as theoretical objects that the first physical black hole ever discovered was spotted in 1971.
In 2019, The Event Horizen Telescope (EHT) collaboration captured the first ever image recorded of a black hole. The EHT captured the black hole which was in the center of galaxy M87.
So far, astronomers have identified three types of black holes:. Those are stellar black holes, supermassive black holes and intermediate black holes.
The structure of Black holes contains three layers. Those are the outer and inner event horizon, and the singularity.
Black Holes are still a mystery to us even though scientists all around the world are researching about it, we know very little about Black Holes.
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