... Mars, the object of centuries of intense curiosity and careful scrutiny, is now the subject of an ExInEd Electronic PictureBook authored by The Planetary Society. ...
... the extraterrestrial sky, is not dark at any wavelengt h. This was a gradual discovery, beginning wit h an early 20th century measurement of about one 5t h magnitude star per square degree by Simon Newcomb, and continuing with both particles and radio, X ...
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Ссылки http://www.stsci.edu/institute/smo/events/colloquia/2008/ColloquiaMay28Trimble.pdf -- 205.6 Кб -- 05.02.2013 Похожие документы
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