The way the rings were observed is probably the way we should be observing UFOs. The rings are made of rubble and not dust. Is the rubble staying intact and not reducing to dust from collisions. Is the rubble in the rings a mixture of Uranus and what hit Uranus. Anywhere from 1/14 to 1/3 of the mass of Uranus could be from a collision from another body which could make its composition completely unnatural compared to the way the other planets formed. Another place where the more we find out the less we know.