Explores the previously uncelebrated but pivotal contributions of NASA's African American women mathematicians to America's space program, describing how Jim Crow laws segregated them despite their groundbreaking successes. Includes biographies on Dorothy Jackson Vaughan (1910-2008), Mary Winston Jackson (1921-2005), Katherine Colman Goble Johnson (1918-), Dr. Christine Mann Darden (1942-).

"Today, everyone is familiar with Neil Armstrong's famous words as he first set foot on the moon: 'one small step for man; one giant leap for mankind.' He made it look easy, but America's journey to the moon was anything but simple. In 1957, when the Soviet Union launched Sputnik, the world's first satellite, into orbit, America had barely crossed the starting line of the great Space Race. Later that year, our first attempt was such a failure that...