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Astronomy: Supermassive black hole is a puzzle - Financial Times

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Financial TimesAstronomy: Supermassive black hole is a puzzleFinancial TimesIndeed SDSS J0100+2802, as it is unmemorably called, is by far the brightest object that astronomers have seen so far in the young universe: 420 trillion times brighter than the sun. Its great distance from us, in space and time, meant that five large ...

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