Readers Respond to the September 2025 Issue

SETI THE RECORD STRAIGHT In “We Probably Aren’t Alone,” Sarah Scoles describes how Italian astronomer Giovanni Schiaparelli’s 1877 observation of apparent “channels” or “grooves” on Mars had led to a widespread belief that the planet was “home to canal-digging civilizations” thanks to a mistranslation. Scoles notes that this idea “began to lose its sparkle in…

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