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				... portal is currently online at http://www.usno.navy.mil and is being populated. ... About AA. Information about the department and its history ...			 
				
					http://aa.usno.navy.mil/				
							 
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					02. Observable Universe and Beyond. 03. Superclusters. 04. ... 15. Elementary Particles and the World of Planck Scale. 16. Frontier of Science. 17. Appendices ...				 
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					Stellarium is planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.				 
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					Official site for NASA, the United States space agency, providing current information on its robotic and manned space exploration missions.				 
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					Provides news and feature stories from Astronomy magazine as well as observing guides, an image gallery, parent and teacher resources, a beginners section, and more.				 
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					Site of amateur Romanian astronomer Emil Neata. Gives updated weekly information about the night sky, including specific planetary locations, astronomy articles, and links to other astronomy sites.				 
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					Galaxy Zoo is an online, large-scale astronomical survey that asks volunteers to help classify galaxies.				 
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					KidsAstronomy.com is a powerful astronomy websited designed to introduce children to the facinating ... KidsAstronomy.com, part of the KidsKnowIt Network, is the ...				 
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					Official site for the The International Year of Astronomy 2009 (IYA2009), the global celebration of astronomy and its contributions to society and culture.				 
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