Clear+Vivid with Alan Alda

David Baron: When Martians were real

Feb 17, 2026
David Baron, a journalist and author of The Martians, explores the turn-of-the-century craze over life on Mars. He traces how a mistranslation sparked the canal craze and how perceptual errors and publicity sustained it. Stories range from Lowell’s photographs to Tesla’s signal claims and how the Martian myth evolved into modern UFO culture.
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INSIGHT

Martians As Cultural Comfort

  • Percival Lowell turned faint telescope lines into a persuasive theory of advanced Martians watching over Earth.
  • The idea filled a cultural need as science had eroded traditional religious comfort about cosmic meaning.
ANECDOTE

The Classroom Canal Experiment

  • Edward Walter Maunder tested perception by showing boys an altered Mars map at different distances and recorded their drawings.
  • Boys in the middle saw lines where none existed, demonstrating how limited viewing makes the eye connect dots into canals.
INSIGHT

Persuasion Outweighed Evidence

  • Lowell's skill as a writer and photographer helped shift Martian canals from tabloid talk to mainstream belief.
  • Respected figures like Alexander Graham Bell and pastors amplified the idea into public culture.
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