What is another word for Oort Cloud?
Pronunciation: [ˈuːət klˈa͡ʊd] (IPA) 
The Oort Cloud is a hypothetical region of space beyond the Kuiper Belt that is believed to contain trillions of icy planetesimals and comets. When referring to this region, astronomers often use synonyms such as the "Oort Cloud Zone," "Oort Cloud Sphere," or simply the "Oort Cloud." It is named after Dutch astronomer Jan Oort, who first hypothesized its existence in the 1950s. Other terms that are occasionally used to describe this region include the "Hills Cloud," named after astronomer J. G. Hills, who also provided evidence for the existence of the Oort Cloud, and the "trans-Neptunian region," as it lies beyond the orbit of Neptune.
