Photo: "Hidden" Black Holes Discovered in Distant Galaxies



A spiral galaxy with a plump bulge in its center and a "skinny" galaxy without a bulge are represented in an artist's conception.

New infrared data from the Spitzer Space Telescope suggests that even skinny, bulge-less galaxies can host supermassive black holes at their centers, challenging current theories about galaxy evolution.

Image courtesy NASA/JPL-Caltech


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