From StarTalk.

In this episode, Neil deGrasse Tyson, joined by Chuck Nice, interviews David Grinspoon about the historical belief in life on Mars. They explore how Percival Lowell’s claims about Martian “canals” sparked widespread scientific and public belief in intelligent Martians, influenced H.G. Wells’ War of the Worlds, and even contributed to Orson Welles’ famous radio panic. The discussion centers on how wishful thinking, observational bias, and the limits of early telescopes led even scientists into a form of collective delusion—revealing how powerful human perception and expectation can be in shaping scientific conclusions.

From ‘Why We’re Going Back to Venus, with David Grinspoon’: https://youtu.be/lpY0iY5PgRg?si=3Nx1n6Al98eu9gAV

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