As stars whip around our galaxy's supermassive black hole, they should generate their own special kind of 'sonic boom' -- could astronomers detect them?
In a galaxy, 600 million light-years away, a black hole deathmatch is ripping up spacetime, exposing some fascinating dynamics at the heart of a powerful quasar.
Europe's XMM-Newton telescope took an X-ray scan of the Milky Way's core, capturing some dazzling high-energy delights.
Astronomers have discovered the smallest supermassive black hole lurking in the center of a dwarf galaxy around 340 million light-years away. Small it may be, but it could help to unlock some pretty hefty black hole mysteries.
A newfound giant black hole nearly as massive as 7 billion suns is dozens of times larger than astronomers expected given its host galaxy's size, researchers say.
Astronomers have witnessed, for the first time, a relativistic collision in a black hole jet millions of light-years from Earth.
Powerful jets of material spewing from the edge of monster black holes may be more likely to arise where two galaxies have merged together.
Astronomers have found a quartet of quasars embedded in a single cloud of cold gas, a discovery that challenges currently held theories about how these rare objects form.
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