The expression “Once in a Blue Moon” is colloquial for “The thing hardly ever happens.” But If you meant it literally, then that thing will occur every two or three years.

So, like most cosmic happenings, Blue Moons aren't entirely rare, even if we want to think they are.

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@atomhebert @neiltyson Actually, contrary to popular belief, most parades will continue even through bouts of precipitation 😌😌😌 E=MC^2 or whatever

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@atomhebert Profile picture Adam Hebert

@atomhebert

 3 weeks ago

@neiltyson Always raining on someone’s parade. Feel free to ruin that saying, too

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@neiltyson Considering the modern average attention span, every two or three years is like eons, so... 🤷‍♂️

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@neiltyson We're so high we have 4 full moon view Halloween.

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@cyclingiszen Profile picture Andres

@cyclingiszen

 3 weeks ago

@neiltyson How about once for every observable blazar? I hear those are rare.

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@CaptainDecoy Profile picture Jeff Michael

@CaptainDecoy

 3 weeks ago

@neiltyson That’s what happens when you apply human timelines to the cosmic machine.

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@BmackJazz Profile picture Brian McCarthy

@BmackJazz

 3 weeks ago

@neiltyson Once in a Mass Extinction Event...

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@Username6800 Profile picture Dombot

@Username6800

 3 weeks ago

@neiltyson Neil this was my party fun fact and now you’ve ruined it! I hate 2020.

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@LiterrallyADuck Profile picture Duck

@LiterrallyADuck

 3 weeks ago

@neiltyson This is why I love you Neil

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@hakangunery_ Profile picture hakan güner

@hakangunery_

 3 weeks ago

@neiltyson 💙

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ガバガバ笑うウヨンちゃんが大好きです✊🏻
これからもサン氏とのイチャイチャを見せつけながらカンヨサンと一緒にチキン食べてね🍖✨

ウヨンペンの方々もおめでとうございます🧁❤︎

#우영아_태어나줘서_Gracias

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happiest birthday to san’s best friend and my best friend <3 🤍 the best boy ever who cannot not be loved 🥰
#BornToBeLovedWooyoungDay
#우영아_태어나줘서_Gracias

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Happy birthday best boy 우영아💙🎉 wish you a great life with lots of happiness. You're an amazing person, you're doing great and you're so much precious💗 i love you so much you are so lovely💕
#우영아_태어나줘서_Gracias
#BornToBeLovedWooyoungDay
@ATEEZofficial

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HAPPY BIRTHDAY WOOYOUNG
ILYYYY HOPE YOU HAVE A GREAT DAY MY KINGGG 😍😍😘🎉🎉

#우영아_태어나줘서_Gracias
#BornToBeLovedWooyoungDay
@ATEEZofficial #WOOYOUNG

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