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“ [Researchers] believe that large galaxies such as the Milky Way contain supermassive black holes in their cores that drag dust and gas toward them in a disk and fling it back out via jets of ionised gas or plasma moving at up to 99.9 per cent the speed of light. If that jet points toward Earth, researchers call it a blazar, and it is “one of the most impressive high-energy natural laboratories” in the universe […]
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