The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system. It is named after astronomer Jan Oort, who first theorised its existence. The Oort Cloud is roughly spherical, and is thought to be the origin of most of the long-period comets that have been observed. read more
The Oort cloud (/ ɔːr t, ʊər t /), named after the Dutch astronomer Jan Oort, sometimes called the Öpik–Oort cloud, is a theoretical cloud of predominantly icy planetesimals proposed to surround the Sun at distances ranging from 50,000 and 200,000 AU (0.8 and 3.2 ly). read more
The Oort cloud, also known as the Öpik–Oort cloud, is a spherical cloud of icy objects that is believed to surround the Sun at around 50,000 Astronomical Units (AU). This extended shell is named after Dutch astronomer Jan Oort and Estonian astronomer Ernst Öpik who theorized its existence. read more
The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system. read more