Our best bet is viewing the one at the center of the milky way and so far we haven't seen it. They are caused by infalling matter and currently not much is fal

Our best bet is viewing the one at the center of the milky way and so far we haven't seen it. They are caused by infalling matter and currently not much is falling in. So at least for now it's easier to look at the jets coming out of more distant black holes.