Black holes come in three weight classes: stellar-mass black, intermediate-mass black, and supermassive. While astronomers have definitively identified objects in the lightest and heaviest classes, the middleweight intermediate-mass black holes, or IMBHs, have remained elusive. But evidence is piling up, including compelling new results from the Hubble Space Telescope (HST) spanning two decades, published JulyContinue reading "Hubble spots likely intermediate-mass black hole in Omega Centauri"
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