Black hole on a diet creates a 'changing look' quasar

Black hole on a diet creates a 'changing look' quasar
New Haven CT (SPX) Jan 24, 2015 - Yale University astronomers have identified the first "changing look" quasar, a gleaming object in deep space that appears to have its own dimmer switch. The discovery may offer a glimpse into the life story of the universe's great beacons. Quasars are massive, luminous objects that draw their energy from black holes. Until now, scientists have been unable to study both the bright and dim ... more

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