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According to Stephen W. Hawking, Black holes are rips in the fabric of space of the universe. They can be neither be visible to our eyes nor are they detectable by even the most powerful telescope –– the Hubble Telescope –– so far created by man. According to Hawking also, the Black hole are nothing but dead stars. The collapse of the star leads to singularity. The black hole may be described as the final stage in the death of a star before the point of singularity is reached. For Roger Penrose, a British mathematician, the collapsed star would form a singularity where time ceased and the laws of physics no longer applied. In other words, it would defy the laws of gravity to the extent of having mass but no dimension. Likewise, space-time and light wouldn’t just be drawn into a hole; they would be wound up infinitely tightly to the point where they disappeared. Hawking began studying Penrose’s ideas and essentially developed his own and like many such great ideas, this was essentially simple.
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