What you need to know about the transit of Mercury on Monday

On May 9th, 2016, Mercury will move across the face of the sun, offering a rare viewing opportunity for professional astronomers and backyard sky watchers alike.
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On May 9th, 2016, Mercury will move across the face of the sun, offering a rare viewing opportunity for professional astronomers and backyard sky watchers alike.
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Catch Mercury's rare transit of sun Monday in Sacramento at day break

May 08, 2016 09:34 AM