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Black Hole Fireworks

16 March 2010

Daily Galaxy March 15th (www.dailygalaxy.com ) … ‘The Milky Way Monster Black Hole Awakes’ is the headline to the story. It apparently fired a monster flare some 300 years ago (yes, just 300 years ago). An X-ray image of the centre of the Milky Way is dominated by Sagittaurus A, a massive black hole or chaotic region where young stars are surrounded by a layer of superheated gas visible only by X-ray imaging. Just 300 years ago, it is estimated, it expelled a massive energy flare – but the burst of energy has apparently only just reached Sagittaurus B and therefore has a long way to go.

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