As in the black hole at the center has been filled to capacity by the neighborhood blokes or the butt in the ashtray has all but burned down to a smoldering ember? Inquiring minds want to know!
These Astronomers haven't a clue? That galaxy has clearly lost it's Mojo! The good news? There are a plethora of internet know-it-alls that can help that poor hapless luminary to regain it!
Astronomers have discovered a galaxy located about 10 billion light-years away that has lost 95% of its brightness in less than 20 years. And further studies will need to be conducted to better understand this phenomenon.