To my understanding, as an object approaches the event horizon of a black hole, the light that is seen by a relatively static observer slows down more and more until the light is eventually "trapped" on the event horizon, making it appear to the observer as though the object is standing still. If this is wrong, then you can probably ignore the rest of my post. If this is true, then wouldn't black holes appear much like a desolate planet? Gasses, dust, and debris would eventually give the appearance of a surface that could cause unwary travelers to be sucked in. Is there a flaw in my reasoning somewhere? If so, where?