Renowned astrophysicist Neil deGrasse Tyson got a round of groans on Twitter this Christmas Eve for taking Santa Claus and his reindeer just a tad too literally.
In a series of tweets, Tyson broke down why the story of St. Nick and his companions doesn’t hold up under the scrutiny of science.
Tyson said it would defy the laws of physics for Santa to deliver gifts to all the world’s Christians in one night. Such a task he said, would require “hypersonic speeds through Earth’s lower atmosphere, vaporizing his reindeer & sleigh. Just sayin’.”