Transit of Mercury on November 11

transit of Mercury

The planet Mercury will pass directly between the Earth and the Sun on the morning of November 11. Such an occurrence is called a transit, and it means that Mercury will be visible (through telescopes — the planet is far too small to see with the naked eye) against the…

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Once in a Blue Moon – Twice in the Same Year!

When we have two full moons in a single month, the second one is called a blue moon.   It is a fairly infrequent phenomenon.  This Saturday, March 31, is not only a blue moon … it’s the second blue moon we will experience this year (the first happened on January 31st).   The…

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