Long before NAPA's Hidden Figures of the 1960’s space program, there were the The Rocket Girls: The Women Who Propelled Us, from Missiles to the Moon to Mars.

When Sally Ride blasted off as the first American woman into space back in 1983, she may not have know it at the time, but she stood on the shoulders of dozens of woman who, beginning in the 1940's, helped America compete in the space race and the Cold War.

Based at the Jet Propulsion Laboratory in Pasadena, California, these woman essentially provided the computational power that made rocketry viable. They shattered not only glass ceilings, but helped free us from what poet John Magee call the “surly bonds of earth.”

Nathalia Holt, trained at Massachusetts General Hospital, MIT and Harvard, takes us back to a seminal time for woman and America in space.

My conversation with Nathalia Holt: