Vernal Equinox: Science Behind the First Day of Spring
March 20, 2015 is the Vernal Equinox, which is more commonly known as the First Day of Spring.
Continue Reading http://www.wunderground.comMarch 20, 2015 is the Vernal Equinox, which is more commonly known as the First Day of Spring.
Continue Reading http://www.wunderground.com
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