Definition: 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.
Input: This has provided the best current measurement for the Hubble constant, which may be inferred from WMAP's measurements of it anisotropy. Other anisotropies in this field can be caused by gravitational waves or the Sunyaev-Zel'dovich effect. It was generated at a redshift of approximately 1100, implying that the temperature of the universe at the last scattering surface was about 3000 Kelvin. Accidentally discovered in 1964 by Robert Wilson and Arno Penzias, FTP, what is this ubiquitous radiation field corresponding to a blackbody of 2.7 Kelvins
Output:
Science