Astronomers witness entire galaxy 'turn on the lights' in real time

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Astronomers witness entire galaxy 'turn on the lights' in real time
Black HoleAstronomersMashable
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Located around 300 million light-years away, astronomers believe they have witnessed a supermassive black hole awakening at the center of the galaxy.

journal, a galaxy identified as SDSS1335+0728 was relatively unremarkable until an unusual event occurred five years ago. Located around 300 million light-years away, astronomers believe they have witnessed a supermassive black hole awaken at the center of the galaxy.

"Imagine you’ve been observing a distant galaxy for years, and it always seemed calm and inactive," Paula Sánchez Sáez, an astronomer at the European Southern Observatory said in a statement, according to Mashable. "Suddenly, its starts showing dramatic changes in brightness, unlike any typical events we've seen before."uploaded an artist's animation of the event to its official YouTube account.

A galaxy remaining lit for several years is unprecedented, according Mashable, citing scientists, including those from NASA's Swift and Chandra X-ray observatories. "These giant monsters usually are sleeping and not directly visible," study co-author Claudio Ricci of the Diego Portales University in Chile in a statement, per Mashable. "In the case of SDSS1335+0728, we were able to observe the awakening of the massive black hole, suddenly started to feast on gas available in its surroundings, becoming very bright."

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