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Come Fly with Us is the story of an elite group of space travelers who flew as members of many space shuttle crews from pre-Challenger days to Columbia in 2003. Not part of the regular NASA astronaut corps, these professionals known as “payload specialists” came from a wide variety of backgrounds and were chosen for an equally wide variety of scientific, political, and national security reasons.

When Ed White, clad in his gleaming space suit with a large American flag on his left shoulder, eased himself outside his Gemini spacecraft in 1965, Americans had a new space hero. They also learned a new acronym: EVA, short for extravehicular activity, more commonly known as "spacewalking." Though few understood the tremendous risks White was taking in his twenty-two-minute space walk, Americans watched with immense pride and patriotism as White, tethered to Gemini 4, propelled himself around the spacecraft with a pressurized oxygen-fueled zip gun.