Black holes are theorized as extremely dense and in the center of galaxies, where light cannot even escape.  What about a supermassive black hole?  This video goes into depth about this mysterious universal phenomenon.  A collapsed neutron star can weigh 100 million tons per one teaspoon which is hard to imagine.  So what makes these supermassive ones different and how big are they?

Find out more and see a telescope view in the video on page 2

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