Black holes represent extreme conditions of physical laws. Predicted about a century ago. they are now accepted as astrophysical reality by most of the scientific community. Only recently has more direct evidence of their existence been found—the detection of gravitational waves from black hole mergers and of the shadow of a supermassive black hole in the center of a galaxy. https://www.diegojavierfares.com/special-offer-Salvation-Vinyl-LP-great-price/