Around 13 times per century, Mercury passes between Earth and the sun in a rare astronomical event known as a planetary transit. The 2016 Mercury transit occurred on May 9, between roughly 7:12 a.m. and 2:42 p.m. EDT.
You know the planets are real but seeing them like this, in transit, makes them seem even more so. Such a little world tranversing the face of our beautiful star.
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