Mae Jemison always knew she would go to space

Mae Jemison is nothing short of a scientific visionary. In the 1990s, when she was working as a medical doctor, she decided to try out for the Space Shuttle program. A few years later, she was an astronaut, doing medical experiments on the Space Shuttle and making history. After leaving NASA, she worked on developing… » 7/11/12 11:41am 7/11/12 11:41am