Black Holes

Worldwide Scientific Discussion Community

A black hole is a cosmic body with a very high density and concentration of matter, that even light cannot escape from it, which is an incredible speed (300,000 km / s).
The presence of these objects affects their environment in extreme ways, such as the deformation of space-time.
The existence of black holes is assumed by Einstein’s theory of relativity. According to classical general relativity, no matter or information can flow from the inside of a black hole to the outside observer.
The existence of black holes in the universe is well supported by astronomical observations, mainly from the study of supernovae, X-rays from the active galactic nucleus, and the behavior of matter and the radiation around it.
On April 10, 2019, scientists from EHT (Event Horizon Telescope) succeeded
take a picture of a black hole M87.
A black hole is formed whenever a sufficient amount of matter condenses…

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