Women's History Month Spotlight: Katherine Johnson

Published: Mar. 11, 2015 at 12:29 PM CDT|Updated: Mar. 12, 2015 at 4:00 AM CDT
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It's Women's History Month and #WomenYouShouldHaveHeardOf has been trending on Facebook and Twitter.

Here's a woman you may not have heard of: Katherine Johnson.

She is an American physicist and mathematician who calculated NASA's rocket flight trajectories.

She was involved in the Apollo 11 mission to the moon, the Space Shuttle Program and plans for a mission to Mars.

In 1970, Johnson worked on Apollo 13's failed mission to the Moon. Once the mission was aborted, Johnson's work on backup procedures and charts helped safely return the crew to Earth four days later.

Her work was so accurate that when NASA switched to using computers, they would call her to check the computer's calculations for errors.

Johnson raised three daughters, sang in her church choir for 50 years, and still plays the piano.

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