"Black holes are so stealthy that this one has been practically under our noses this whole time." ...
There is a supermassive black hole at the center of nearly every big galaxy—including ours, the Milky Way (it's called ...
In fact, the best place to test this is at the supermassive black hole in the center of our home galaxy, the Milky Way, which is 27,000 light years away. Not conveniently close to the least.
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