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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.

Astronomy is one of the oldest sciences. Astronomers of ancient Greece practiced a scientific methodology, and advanced observation techniques may have been known much earlier (see archaeoastronomy). Historically, amateur astronomers have contributed to many important astronomical discoveries, and astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and observation of transient phenomena.

Modern astronomy is not to be confused with astrology, the belief system that claims human affairs are correlated with the positions of celestial objects. Although the two fields share a common origin, they are fundamentally different: astronomers employ the scientific method, whereas astrologers do not.

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Why is cosmology and quantum gravity so important? http://bit.ly/8Azp59
star3dhamdi (huhn huan) Wed, 23 Dec 2009 14:17:09 -0000
Why is cosmology and quantum gravity so important? http://bit.ly/8Azp59
New blog post: Astrophysics amp; Cosmology - J. Garcia Bellido http://bit.ly/7quIM0
gadgetfact (GadgetFact) Wed, 23 Dec 2009 14:00:47 -0000
New blog post: Astrophysics amp; Cosmology - J. Garcia Bellido http://bit.ly/7quIM0
Astronomy News - Mathematical Cosmology and Extragalactic Astronomy: Publisher Academic Press X.. http://bit.ly/5IKQ2B
Caveman_Costume (Prehistoric Costumes) Wed, 23 Dec 2009 11:33:42 -0000
Astronomy News - Mathematical Cosmology and Extragalactic Astronomy: Publisher Academic Press X.. http://bit.ly/5IKQ2B
Toward a Holistic Cosmology of the Planetary Culture http://bit.ly/5JidTW
GaianCollective (Planetary Citizens) Wed, 23 Dec 2009 09:05:07 -0000
Toward a Holistic Cosmology of the Planetary Culture http://bit.ly/5JidTW
A Holistic Cosmology would be a fusion of physical & mythosophical cosmologies.
GaianCollective (Planetary Citizens) Wed, 23 Dec 2009 09:04:39 -0000
A Holistic Cosmology would be a fusion of physical & mythosophical cosmologies.
A bona fide Holistic Cosmology applies to everyone regardless of ones cultural particulars or personal beliefs.
GaianCollective (Planetary Citizens) Wed, 23 Dec 2009 09:04:21 -0000
A bona fide Holistic Cosmology applies to everyone regardless of ones cultural particulars or personal beliefs.

 
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Meta Description: [ For new, exciting, random, and interesting theories and speculations about space, religon, life, humanity, and the world try Theories of the Universe! ]

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