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Mercury transit: When and how to watch the rare astronomical event

Mercury is on the move. On Monday morning, Mercury will make a pass in front of the sun. Though the smallest planet will seem like a mere freckle compared to our yellow dwarf, it’s a rare celestial event. Miss it, and you’ll have to wait another 13 years. What is the Mercury transit? Of course, Mercury, along with the rest of the planets in our purview, all orbit around the Sun — so this sort of thing technically happens at least once per planet during every full orbital rotation, depending on your vantage point. How rare is it? The last time this happened was in 2016, but the next flyover won’t take place until 2032. It only comes around about 13 times every century, during the months of either May or November. When is the M ...