"June 20 vs June 21: Solstices (& Equinoxes) annually migrate..." — Neil deGrasse Tyson

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June 20 vs June 21: Solstices (& Equinoxes) annually migrate 6-hrs later, until a Leap Year, when they reset 24-hrs earlier.

— Neil deGrasse Tyson

via twitter.com

solstices equinoxes leap year

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