Rare US total solar eclipse excites Americans coast-to-coast

via Principia Scientific International
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For the first time in almost a century the United States is preparing for a coast-to-coast solar eclipse, a rare celestial event millions of Americans, with caution, will be able to observe. During the eclipse on August 21—the first of its kind since 1918—the moon will pass between the sun and Earth, casting a dark […]

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via Principia Scientific International http://ift.tt/1kjWLPW

June 22, 2017 at 08:30AM