‘Runaway’ black hole the size of 20 million suns found speeding through space with a trail of newborn stars behind it

Astronomers have spotted a supermassive black hole running out of its home galaxy as it races through space with a chain of stars in its wake.

According to the team’s research, published on the preprint server onXiv.org (opens in a new tab) and accepted for publication in The Astrophysical Journal Letters, the discovery provides the first observational evidence that supermassive black holes can be ejected from their home galaxies to roam interstellar space.

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