In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: Due to their icy composition, some of these objects such as 60588 Echeclus can be classified as both asteroids and comets due to their exhibition of coma. Although they possess a wide variety of colors making the classification of surface composition difficult, they are usually classified into two major color groups: very red and blue-grey. None have ever been imaged by spacecraft, but there is evidence that Saturns moon Phoebe may be a captured object of this type. Orbiting between Jupiter and Neptune, FTP, what icy planetoids, the best known of which is Chiron, and are named after half-men, half-horses from Greek mythology.
A:
Social Science