The solar system has a ring?
Well, that’s one idea, yeah. :’) There’s the Kuiper Belt, which consists of real and theoretical orbiting debris, akin to the more familiar asteroid belt. And there’s the Oort Cloud, which has literally never been detected, and that consists of a roughly spherical halo of debris (usually thought to be comets). The Oort Cloud’s named after Van Oort, maybe he posited its existence, but its reason for being is to clean up the theoretical mass distribution of the solar system and as a sort of kludge solution to mathematical problems with theories of solar system formation.