Viral social media posts claiming a celestial "smiley face" will appear on Christmas are false. The "smiley face" illusion is an optical effect caused by the alignment of a crescent Moon and two ...
A rare celestial event will be visible across the United States on May 29. A crescent moon will appear with two bright stars, Castor and Pollux, forming a pattern that looks like a smiley face. The ...
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