Chandra and XMM-Newton provide direct measurement of distant black hole’s spin

Astronomers have used NASA’s Chandra X-ray Observatory and the European Space Agency’s (ESA’s) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely rapidly. This first direct measurement of the spin of such a distant black hole is an important advance for understanding how black holes grow over time.

from Space & Time News — ScienceDaily http://ift.tt/Nxhyl8

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