Astronomy gifts & toys for children & adults, shop by ex-Hubble staff. We have star charts, telescopes, and many more items for astronomy enthusiasts! Buy solar system models & mobiles, orreries, planetariums, Moon globes, star globes, & star maps. Telescopes can be found under Instruments.
Astronomy is a natural science that deals with the study of celestial objects (such as moons, planets, stars, nebulae, and galaxies); the physics, chemistry, and evolution of such objects; and phenomena that originate outside the atmosphere of Earth (such as supernovae explosions, gamma ray bursts, and cosmic background radiation). A related but distinct subject, cosmology, is concerned with studying the universe as a whole. Astronomy is not to be confused with astrology, the belief system which claims that human affairs are correlated with the positions of celestial objects. Although the two fields share a common origin they are now entirely distinct.