Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
N-UNCOUNT
Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012