With a name that’s like something out of Star Trek, it should come as no surprise that strange things are happening in Palomar 5. Astronomers set their sights on this globular cluster to try and understand how tidal streams (long stretches of stars) form. But they found something unsettling—over 100 tightly packed, stellar-mass black holes.
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Source : Astronomers Find Over 100 Closely Packed Black Holes Orbiting the Milky Way
