Episode 39 Katherine Johnson: The Mathematical Genius Who Sent America to Space Brad Young

When John Glenn prepared to orbit Earth in 1962, he had one specific request that would change the course of space exploration forever. The legendary astronaut refused to fly until Katherine Johnson personally verified the electronic computer calculations for his flight trajectory. "Get the girl to check the numbers, he said. That girl was a brilliant mathematician whose precise calculations would prove essential to America's greatest space achievements.