The Stream - NASA's 'Hidden Figures'

Follow The Stream and join Al Jazeera’s social media community: This episode’s story: http://stream.aljazeera.com/story/201... FACEBOOK:   / ajstream   TWITTER:   / ajstream   GOOGLE+: http://google.com/+TheStream **************************************************** On The Stream: Author Margot Shetterly chronicles the unsung black women who helped the US win the space race. Thumbnail: Dorothy Vaughan, Mary Jackson, Katherine Johnson and Christine Darden in a photo from their days as NASA mathematicians. (NEW JOURNAL GUIDE/WILLIAM MORROW)