What is a black hole and why is it so mysterious?
Everybody loves to admire the sky with shining little stars. Ever wonder how many stars are there, in our childhood we all tried to count the stars. Between all these shining little stars there is something huge in the sky that destroy the stars but it is not visible to the human eyes from the earth which we call a black hole. What is a black hole? A black hole is an area of spacetime where gravity is so strong that nothing can escape through it not even particles or electromagnetic radiation such as light. This idea was first announced in 1783 by John Michell and then Albert Einstein with his general theory of relativity first projected the existence of black holes in 1916. Cygnus X-1 was the first black hole in the Milky Way galaxy, first image of a black hole was captured by the Event Horizon Telescope in 2019. ...