ARTHUR'S FREE ASTRONOMY CLIPART AND IMAGES

Free astronomy clipart, astonomy images, astronomy illustrations, planets, moon, stars, nebulae, milky way, venus, neptune, mars, pluto, out of the world images and illustrations may be used free to children, teachers, lecturers, students and learners, 100 graphics in a collection of 60,000 cliparts.

Astronomy is a natural science that deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the atmosphere of Earth (such as cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.

                    

Astronomy is one of the oldest sciences. Prehistoric cultures left behind astronomical artifacts such as the Egyptian monuments and Nubian monuments, and early civilizations such as the Babylonians, Greeks, Chinese, Indians, Iranians and Maya performed methodical observations of the night sky. However, the invention of the telescope was required before astronomy was able to develop into a modern science. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars, but professional astronomy is nowadays often considered to be synonymous with astrophysics.

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Last updated September 2013