A Dead Galaxy Is Screaming Radio Signals Into Space. It Shouldn't Be.
A galaxy that stopped making stars billions of years ago is firing off intense radio bursts — and the leading explanation involves ancient stellar corpses finding each other in the dark.
A Supermassive Black Hole Just Went Dark on a Human Timescale
The models said this would take thousands of years. A galaxy 10 billion light-years away apparently didn't get the memo — and now the whole framework is in question.