What is blackholes?

Zaid Jaber by Zaid Jaber
What is blackholes?

In this article we tell you what is a  black hole.

 

black hole is an extremely dense object from which no light can escape. ... The stunning new image shows the shadow of the supermassive black hole in the center of Messier 87 (M87), an elliptical galaxy some 55 million light-years from Earth. Thisblack hole is 6.5 billion times/.
 
according to NASA the link below will show brand new images.
 
 
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