When darkness falls, look east. The brightest star in that direction is blue Vega. Directly below it hovers the absolute number-one strangest thing in the universe.
First envisioned in 1798, black holes epitomize mystery and danger as no object ever known. The singularities at their cores are utterly unexplainable by science – prowlers in the inaccessible alleyways beyond our comprehension.
We can ease our way into this shaky realm by exploring the surest black hole in the heavens. That’s the one below Vega, in the lovely constellation Cygnus the Swan. The middle of the swan’s neck is defined . . .
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