Moon, Sun and Stars are Known as? A) Terrestrial bodies B) Celestial bodies C) Water bodies D) None of these Related MCQs: Sun Radio Interferometer Space Experiment (SunRISE) mission, recently announced by which space organization to study giant stars? Neil Armstrong was the first to set foot on the Moon in? The Sun is 150 million away from the earth.What is sun’s diameter? Study of stars is called: