Franklin Chang-Díaz knew then that his future was in physics. “I wanted to be like Wernher von Braun and Robert Goddard,” he says. “I wanted to design rockets.” That he spoke no English ...

Franklin Ramón Chang-Díaz (born April 5, 1950, San José, Costa Rica) is an American mechanical engineer, physicist, and former NASA astronaut. He is the sole founder and CEO of Ad Astra Rocket ...