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Reference.org
2009 in science
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<p>The year 2009 involved numerous significant scientific events and discoveries, some of which are listed below. 2009 was designated the <a href="/facts/International_Year_of_Astronomy/pvcqgC8f">International Year of Astronomy</a> by the <a href="/facts/United_Nations/fgXLnmgT">United Nations</a>. </p>