View Full Version : Gas Clouds Blot The View Of Supermassive Black Holes

2014-Feb-20, 02:00 PM
Gas around supermassive black holes tends to clump into immense clouds, periodically blocking the view of these huge X-ray sources from Earth, new research reveals. Observations of 55 of these “galactic nuclei” revealed at least a dozen times when an X-ray source dimmed for a time as short as a few hours or as long […]

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