‘Avulsed’ black hole the size of 20 million suns hurtling through space with a trail of newborn stars behind it

Astronomers have discovered a runaway supermassive black hole that appears to have been ejected from its host galaxy, hurtling through space with a chain of stars in tow.

This emerges from research by the team, which was published on the preprint server arXiv.org (opens in 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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