Renowned astrophysicist Neil DeGrasse Tyson spent his Christmas morning composing a series of holiday-themed tweets that annoyed and outraged some Christians.

He began by pointing out the obvious:

QUESTION: ThIs year, what do all the world's Muslims and Jews call December 25th? ANSWER: Thursday — Neil deGrasse Tyson (@neiltyson) December 25, 2014

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Before moving into what many Christians considered “offensive” terrority:

On this day long ago, a child was born who, by age 30, would transform the world. Happy Birthday Isaac Newton b. Dec 25, 1642 — Neil deGrasse Tyson (@neiltyson) December 25, 2014

Nor were capitalists safe from his withering wit:

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Merry Christmas to all. A Pagan holiday (BC) becomes a Religious holiday (AD). Which then becomes a Shopping holiday (USA). — Neil deGrasse Tyson (@neiltyson) December 25, 2014

Which is not to say that he did not make at least one attempt to apply his knowledge to a common Christmas question:

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Santa knows Physics: Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig — Neil deGrasse Tyson (@neiltyson) December 25, 2014

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Needless to say, many were not amused:

.@neiltyson logg off nerd — Chris Holidayname (@NationalTragedy) December 25, 2014

@neiltyson you're even a Jackass on Christmas huh? — IamEvilHomer (@Trent_Hill) December 25, 2014

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@AJDelgado13 @neiltyson Only a small & uncharitable man would take time on Xmas morning 2 take shots but Merry Christmas to you anyway Neil. — Don Schaum (@don11cs) December 25, 2014

@neiltyson I thought u were supposed to b a smart man? Guess having a high IQ doesn't mean having intelligent in the conventional sense. — Haywood Jablome (@Rustynails1) December 25, 2014

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@neiltyson This is disrespectful to Christians. Jesus created the science you cherish so much. Everyone finds God eventually, you will too. — Brian Fagioli (@brianfagioli) December 25, 2014

@neiltyson Weather forecast for the deGrasse Tyson household today: smug with a 90% chance of arrogance. #JesusIsTheReasonForTheSeason — Rep. Steve Smith (@RepStevenSmith) December 25, 2014

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And — because it’s Twitter — the conversation had to turn political: