Astronomy (Greek: αστρονομία = άστρον + νόμος, astronomia = astron + nomos, literally, "law of the stars") is the science of celestial objects (e.g., stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (e.g., auroras and cosmic background radiation). It is concerned with the evolution, physics, chemistry, and motion of celestial objects, as well as the formation and development of the universe. Astronomical observations can be used to test fundamental theories in physics, such as general relativity. Theoretical astrophysics complements observational astronomy in that it seeks to explain astronomical phenomena.
2006-09-14 13:04:06
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answer #1
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answered by Pey 7
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It is the study of the planetary bodies, stars, and other galaxies. It isn't just looking through telescopes either, as there are lots of theoretical applications of physics, such as general relativity and string theory.
2006-09-14 13:05:16
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answer #2
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answered by bordag 3
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Astonomy is the science that deals with the material universe beyond the earth's atmosphere.
2006-09-14 13:02:38
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answer #3
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answered by Ad Just 4
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The study of stars, and planets-space deminsions.
2006-09-14 13:02:01
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answer #4
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answered by Diamond in the Rough 6
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to study the stars,a galaxy the universe
2006-09-14 13:02:24
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answer #5
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answered by steve 5
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The stars and solar system.
2006-09-14 13:03:54
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answer #6
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answered by Anonymous
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Hi. Looking up in wonder.
2006-09-14 13:06:49
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answer #7
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answered by Cirric 7
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