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First glimpse of a black hole's spin

black hole spin ngc 1365

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#1    Still Waters

Still Waters

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Posted 27 February 2013 - 11:05 PM

Astronomers have measured the rate of spin of a supermassive black hole for the first time - and it is big.

Measurements undertaken with two space-based X-ray telescopes imaged the black hole at the centre of galaxy NGC 1365.

The spin measurement, published in Nature, gives precious clues as to how the black hole grew and achieved supermassive status.

http://www.bbc.co.uk...onment-21607945

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