Huntsville native and retired NASA astronaut Jan Davis, who flew on three shuttle missions, will be promoting her new book at its world premiere Saturday.

Davis will be appearing at the U.S. Space & Rocket Center, signing copies of her book that covers both her career as well as the military service of her World War II aviator father, will also be giving a talk about the book.

The book, “Air Born: Two Generations in Flight,” details the experiences Davis’ father, Ben Smotherman, as a B-17 pilot who was shot down over Holland in July 1943 and spending 21 months as a prisoner of war. Smotherman also kept a wartime log that chronicled his flight training, combat missions and eventual capture and interrogation.

Davis flew NASA jets and spent a total of 673 hours in orbit during her three spaceflights.

“Two aviators making history,” Davis’ website said in describing the book. “Two Americans serving their country. One incredible story spanning fifty years and two generations.”

The book signing and Davis’ presentation are free and open to the public. Davis will be speaking at the rocket center’s Discovery Theater at 10 a.m. She will also be signing copies of the book, which will first be available Saturday.

Books are also available for order.