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Stellarium is planetarium software that shows exactly what you see when you look up at the stars. It

You should look here for award-winning, NSTA recommended, interactive Astronomy and Space Science Curriculum. Designed to inspire educators AND students.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Find planets, stars and constellations quickly and easily in the night sky with the AstroViewer night sky map

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Sea and Sky is your one-stop source for all things related to the oceans, seas, and space exploration; features information, games, images, news, and much, much more.

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Only freeware - for Win 95/98/ME/XP/Vista/Win 7. No shareware. Large selection organized by category.