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Neil deGrasse Tyson @neiltyson
Happy Equinox to all Earthlings. Latin for equal-night, today we all get 12 hrs of day & night — except we don’t. FYI: Sunlight crossing from the vacuum of space into Earth’s atmosphere refracts, adding a few minutes more light at sunrise & sunset than we’d otherwise receive. https://t.co/F5HgGsyvtx — PolitiTweet.org