This illustration shows a glowing stream of material from a star, disrupted as it was being devoured by a supermassive black hole. The feeding black hole is surrounded by a ring of dust. This dust was previously illuminated by flares of high-energy radiation from the feeding black hole, and is now shown re-radiating some of that energy. via NASA http://www.nasa.gov/image-feature/jpl/pia20027/infrared-echoes-of-a-black-hole-eating-a-star
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