You are subscribed to Universe News for NASA. This information has recently been updated, and is now available. 02/27/2013 12:00 AM EST Two X-ray space observatories, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency's XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of a black hole with a mass 2 million times that of our sun. This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices.
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