An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light-years.
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Biggest black hole jets ever seen are as long as 140 Milky WaysAstronomers have spotted the biggest pair of black hole jets ever seen — at 23 million light-years in length, they are as ...
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