Scientists have discovered supermassive black holes at the center of two nearby galaxies that had long evaded detection thanks to both the angle of the objects relative to the Earth and the large clouds of stellar gas that shroud them.
Described by NASA as “monster black holes,” they’re considered to be the engines of two “active galactic nuclei,” a class of extremely bright celestial objects that includes quasars and blazars (extremely compact quasars).
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