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Sun-Earth Day is a joint educational program established in 2000 by NASA and ESA. The goal of the program is to popularize the knowledge about the Sun, and the way it influences life on Earth, among students and the public. The day itself is mainly celebrated in the USA near the time of the spring equinox. However, the Sun-Earth Day event actually runs throughout the year, with a different theme being chosen each year.〔 ==Themes== The selection of each year's theme often corresponds to events for that year. Every theme is supported by free educational plans for both informal and formal educators. Here is a list of themes by year: *2013: Solar Max – Storm Warning! *2012: The Transit of Venus on 5 June 2012 *2011: Sun-Earth Day occurred on March 19, with the theme Ancient Mysteries; Future Discoveries. In addition to those celebrations at Goddard Space Flight Center, the NASA center that organizes Sun-Earth Day, over 200 museums and numerous individuals host events around the world.〔(【引用サイトリンク】url=http://www.nasa.gov/centers/goddard/news/features/2011/sun-earth-tweet.html )〕 *2010: Magnetic Storms *2009: Our Sun, Yours to Discover *2008: Space Weather Around the World *2007: Living in the Atmosphere of the Sun *2006: Eclipse in a Different Light *2005: Ancient Observatories Timeless Knowledge *2004: Venus Transit 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sun-Earth Day」の詳細全文を読む スポンサード リンク
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