Tutorial on Earth/Sun Relations and Seasons
To understand why we have seasons, we need to look at the relations ... The sun's rays are pretty close to parallel to each other when they reach the Earth, ...
http://daphne.palomar.edu/jthorngren/tutorial.htm
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6(h). Earth-Sun Geometry
No information avaiable
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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
Current research news plus daily forecasts of solar flares and geo-magnetic storms from NASA.
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Solar and Heliospheric Observatory Homepage
Cooperative effort between the European Space Agency and NASA to study the Sun, from its deep core to the outer corona, and the solar wind.
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Earth and Moon Viewer
Allows you to customize a wide variety of parameters.
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Near-Earth Object Program
Information about near-earth object studies including asteroid orbits, images, updates, potentially hazardous asteroids (PHA), and more.
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Learn More at Space.com. From Satellites to Stars, NASA information, Astronomy, the Sun and the Planets, we have your information here.
Offering original news and educational features about space, science, and space technology.
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Bad Astronomy Blog
Righting wrong ideas. Addresses astronomical and scientific misconceptions spread by movies, TV, the news, and popular beliefs.
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Universe Today
Presents space news from around the Internet. ... universetoday.com. Submit search form. Email newsletter. Daily Edition. Weekly Edition ...
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International Year of Astronomy 2009
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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WIKISKY.ORG
Interactive online sky map ... WIKISKY.ORG. Stars That Shine Forever. Supernova: Chich. Nova: Pasquale Nanula. HE IT FR ZH RU SV PT SR PL DE HU ES JA EN KO TR EL ...
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