Summary: On this week’s podcast: John Glenn was the third person to do everything he’s most famous for as an astronaut, so why does he have such an outsized place in world history? In this episode we talk with Jeff Shesol, who puts Glenn’s orbiting of the Earth in perspective in his new book Mercury Rising. Shesol reveals for the first time ever that Glenn’s flight was far more perilous than anyone had ever let on before.
