Scientists Waited Ages to Find a ‘Missing Link’ Black Hole – Then Stumbled on 2
For decades, astronomers have searched without much joy for signs of “missing link” black holes, aka black holes with masses between those of “stellar-mass black holes” and “supermassive black holes.” The former have been seen scattered across the universe, and the latter are cosmic titans that dominate the hearts of galaxies — but when it … Read more