Mystery solved? Runaway black hole chased by tail of stars may be galaxy in disguise

A 200,000-light-year-long chain of stars originally thought to be trailing a runaway black hole may actually be a galaxy in disguise.

Mystery solved? Runaway black hole chased by tail of stars may be galaxy in disguise
A 200,000-light-year-long chain of stars originally thought to be trailing a runaway black hole may actually be a galaxy in disguise.