The dragon awakens: Colossal explosion from supermassive black hole at centre of galaxy revealed

[unable to retrieve full-text content]Two million years ago a supermassive black hole at the heart of our galaxy erupted in an explosion so immensely powerful that it lit up a cloud 200,000 light years away, astronomers have revealed.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/sNLLZbo-klo/130924091317.htm

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