Party in the galactic centre. We may have found the first solid evidence of a dense conference of stars around the Milky Way's heart, which may one day help us observe the supermassive black hole there. The structure is known as a stellar cusp, and it has played hide-and-seek with astronomers for more than a decade. It was first proposed in the 1970s, when models predicted that stars orbiting a supermassive black hole would jostle around every time one was devoured. Over the course of a galaxy's lifetime, this should leave an arrangement with many stars near the black hole and exponentially fewer as you move farther away.
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