Two Black Holes

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What's happening at the center of active galaxy 3C 75? The two bright sources at the center of this composite x-ray (blue)/ radio (pink) image are co-orbiting supermassive black holes powering the giant radio source 3C 75. Surrounded by multimillion degree x-ray emitting gas, and blasting out jets of relativistic particles the supermassive black holes are separated by 25,000 light-years.

The Ocean Has Black Holes

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According to researchers from ETH Zurich and the University of Miami, some of the largest ocean eddies on Earth are mathematically equivalent to the mysterious black holes of space. These eddies are so tightly shielded by circular water paths that nothing caught up in them escapes.

Creating Black Holes

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A black hole is essentially a ludicrous amount of mass concentrated in an incredibly small space. They're called singularities because gravity becomes measurably infinite at a single point. They suck in everything around them like cosmic vacuum cleaners, and past the event horizon of a black hole nothing can escape, not even light.
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