Related topics: Physics, Astronomy
as·tro·phys·ics /ˌæstrəʊˈfɪzɪks $ ˌæstrə-, -troʊ-/ noun [uncountableU] HPthe scientific study of the chemical structure of the stars and the forces that influence them 天体物理学
—astrophysicist /-ˈfɪzɪsɪst/ noun [countableC]