wow.gm - Astronomy is one of the oldest sciences. Astronomy is defined as the scientific study of matter in outer space; particularly the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies (planets, stars) and other phenomena. Astronomy as a Science and a Sense of Scale. Astronomy is a physical science concerned with the smallest particles and the largest natural objects. Astronomy is the study of the stars, planets, and other objects in space. Stars ...» view full story