I think they screwed up big time.
I thought black holes, where light couldn’t escape, was found to emit neutrinos(weak force?) which showed up in some deep underground pool as they traveled through earth. Being the escape velocity to leave a black hole would be faster leaving than light coming in.
How do they know they (neutrinos) are moving and not just blinking like a xmas bulb on a string of lights where it only appears to be movement?