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https://physics.dartmouth.edu/news/2014/04/warren-brown-smithsonian-astrophyiscal-observatory Warren Brown, Smithsonian Astrophyiscal Observatory | Department of Physics and Astronomy Mar 14, 2016 - Topic: "Hypervelocity Stars" (Video)Abstract: A massive black hole sits in the heart of the Milky Way. Most stars are found in multiple systems. department of physicswarren brownsmithsonianobservatoryastronomy