Instructions: 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: The Rosetta mission will study the influence of this phenomenon on Wirtanen, and several boundaries relevant to this phenomenon include the mystery boundary and the magnetic pile-up boundary. First predicted by Ludwig Biermann, is velocity gradients give rise to corotating interaction regions, and its magnetic fields are studied through the use of a spiral named for the man who first formulated a comprehensive theory of it. Anomalous cosmic rays accelerate to high velocities at this phenomenon's termination shock, and its balance with the interstellar medium defines the location of the heliopause. Notably modeled by Eugene Parker, for ten points, identify this plasma of ionized particles and electrons ejected from the Sun's corona.
Output:
Science