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.

Apparent supraluminal motion in this object was recently resolved by radiation hydrodynamical considerations, in light of the thirty-three-microsecond source at its center. It was determined in 1973 to be six thousand, three hundred light-years away, which gives it an apparent magnitude of negative three point two. About ten light-years in diameter, it was misclassified in 1919 and William Herschel originally thought it was a stellar system that could be resolved with larger telescopes. The inner part of this body appears bluish and emits synchrotron radiation. It also contains NP0532, a pulsar, and an x-ray source, Taurus X-1. FTP, identify this body independently discovered by Bevis and Messier; the nebula resulting from the 1054 supernova, designated M1.
Science