ScienceDaily: Cosmic Rays News |
| Chandra and XMM-Newton provide direct measurement of distant black hole's spin Posted: 05 Mar 2014 10:54 AM PST 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. |
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