Why the night sky is dark

Question asked by Simranjeet Kaur Punjab, India This question is so common — and important — that it has a name: Olbers’ paradox. Named for 19th-century astronomer Heinrich Olbers (though the question had been asked for centuries prior), the idea is this: If the universe is infinite and full of stars, then no matter whereContinue reading “Why the night sky is dark”
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