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(Space.com)
A jet of gas spewing from a huge black hole has mysteriously brightened, flaring to 90 times its normal glow.
For seven years the Hubble Space Telescope has been watching the jet, which pours out of the supermassive black hole in the center of the M87 galaxy. It has photographed the strange phenomenon fading and then brightening, with a peak that even outshines M87's brilliant core.
Scientists have dubbed the enigmatic bright blob HST-1 and are so far at a loss to explain its weird behavior. More>>
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