A while back, Venus transited the Sun. Now it’s Mercury’s turn. This doesn’t happen very often so don’t miss it! Be sure to use appropriate filtering for your viewing to assure safety.
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On Monday, May 9, the transit of Mercury will be visible, according to the Royal Astronomical Society. The next two transits will occur in 2019 and 2032.
Source: May Heralds in a Mercury Transit
Marcha's Two-Cents Worth 
Wow! According to NASA, this only happens 13 times per century.
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Yes, it’s all about declination. Even though Mercury or Venus pass between Earth and the Sun, unless their orbit is lined up with Earth’s this doesn’t occur. That’s why it’s so rare.
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The Universe is amazingly complex.
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It certainly is, and this type of conjunction is very strong astrologically. It will be interesting to see what it brings, probably some surprising information.
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