Arno Penzias: The Pigeon Poop That Revealed the Big Bang

Two scientists climbed inside a giant metal horn antenna to scrub out pigeon droppings, certain the bird mess was causing a stubborn radio hiss ruining their experiment. They were actually listening to the echo of the birth of the universe.This episode tells the story of Arno Penzias, a stateless refugee child who fled Nazi Germany and went on to fundamentally change our understanding of the cosmos, proving that the biggest breakthroughs often disguise themselves as frustrating anomalies.His escape from Munich on the Kindertransport at age six, classified stateless until 1946The U.S. Army Signal Corps radar training that gave him hands-on mastery of microwave hardware and signal noiseWhy the mysterious hiss was isotropic, coming from everywhere equally, and how that ruled out New York City and the pigeonsRobert Dicke's 'boys, we've been scooped' moment and the side-by-side 1965 papers that killed the steady-state theoryThe 1978 Nobel Prize, the cosmological redshift that stretched gamma rays into cold microwaves, and a full-circle telescope dedication in Germany