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Dark heart

发布时间:2019-03-07 07:12:16来源:未知点击:

By Marcus Chown UP TO 25 000 black holes are hiding in the heart of our Galaxy, claim two astronomers in the US. “The black holes are buzzing like flies around the centre,” says Jordi Miralda Escudé of Ohio State University. Although only half a dozen black hole candidates are known to exist in the Milky Way,