(CNN) Astronomers have long studied supermassive black holes and smaller black holes that form when massive stars implode, but they have searched for intermediate-mass black holes for years.
Now, thanks to observations by the Hubble Space Telescope, astronomers have found their "missing link" to understand how black holes evolve. They were able to confirm the observation of an intermediate-mass black hole, known as an IMBH, inside a dense cluster of stars.
The study published this week in the Astrophysical Journal Letters.
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