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Neil deGrasse Tyson @neiltyson
Blue Moon alert: This year, a Full Moon lands on Halloween. With a 29.5-day cycle of phases, any time you squeeze two full moons into a month, the second one is called the “Blue Moon.” Yes, that means February is S.O.L. in its bid for Blue Moons. https://t.co/6u7g95ZCH1 — PolitiTweet.org