Researchers probe features of star clusters surrounding supermassive black holes

At the center of the galaxy, millions of stars whirl in orbits around a supermassive black hole. This circuit can take anywhere from a few hours for stars close to the event horizon of the black hole to thousands of years for their distant neighbors. The nature of the dance—how the stars interact collectively through their gravitational forces—can vary from galaxy to galaxy.


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Source: Phys.org