I am believing that event horizons refer to where light can no longer escape the gravity of a black hole. What about everything else that moves at less than the speed of light? If a small moon winked into existence at some point further out than the event horizon with momentum that was sending it away from the black hole (if you could believe such a thing), would it get sucked back into the black hole like light? Does matter get sucked in faster than photons of light? Is there a separate 'event horizon'-like distance where matter can either escape or fall back in?