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The Pulse

The Pulse

40 Years After Chernobyl: What Caused the Disaster — and How It Changed Nuclear Energy

Apr 23, 2026 · 50m

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About this episode

Forty years ago, news was only beginning to emerge that an accident had occurred — one that could put millions of people at risk. A reactor at Chernobyl Nuclear Power Plant, then part of the Soviet Union, had exploded, releasing a plume of radioactive gases and particles into the atmosphere and spreading some of the most hazardous radionuclides known to humanity. We look back at what caused this devastating nuclear accident, and explore its legacy with Adam Higginbotham , author of “Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster.” He describes the perfect storm of Soviet secrecy, design flaws, and a series of bad decisions and mistakes that led to the…