In the 1960s, locked in a heated race to launch the first human into space, the United States selected seven superstar test pilots and former military air fighters to NASA's astronaut class -the Mercury 7. The men endured grueling training and constant media attention for the honor of becoming America's first space heroes. But a group of 13 women -accomplished air racers, test pilots, and flight instructors -were enduring those same astronaut tests...