In 1978, a Russian physicist leaned over a malfunctioning machine and put his head directly into a beam of protons moving at near light speed. By every law of radiobiology, Anatoly Bugorski should have died within days. Instead, he lived for decades, and his impossible survival still haunts the scientists who study it.

This episode unpacks the harrowing physics, surreal medical aftermath, and Cold War secrecy surrounding one of the most extraordinary cases of human endurance ever documented. From the closed Soviet science city of Protvino to a Moscow clinic where doctors gathered only to observe his expected death, we trace how a localized dose hundreds of times the lethal limit failed to erase a brilliant mind, and what that reveals about the hidden resilience inside the human brain.

• How the proton beam outran Bugorski's nervous ...