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🌕 🎃 Tonight, there's a Blue Moon in the sky! A Blue Moon is a second full Moon in the same calendar month, and Halloween falls on a full Moon only once every 19 years, on average. More @NASAMoon facts: https://t.co/MsvtnKYK9j #NASAHalloween pic.twitter.com/XT0LqCW7VB
— NASA (@NASA) October 31, 2020
weehingthong 