This story was originally podcast in SapceTime with Stuart Gary Series
19 Episode 76.

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*Solving the mystery of the millions of missing stars
Galactic cannibalism may be the clue to finally solving the mystery of
the millions missing stars in the centres of some of the biggest
galaxies. The study which examined the galactic cores of two of the
largest known galaxies – has opened a new window into the processes
that shape the evolution of massive galaxies.