Remembering Cece Bibby, NASA's Mercury capsule artist (pictures)

by CNET News.com  |  November 15, 2012, 5:00pm PST  |  Image 13 of 16

Wally Schirra had come to Bibby with the name "Sigma," which is a mathematical term meaning the "sum of" for the call sign of the spacecraft used in the Mercury-Atlas 8 mission. Schirra felt that these flights were the sum of all the engineering, designing, testing, and construction that encompassed the entire Mercury Project, and he wanted to honor all the people who contributed to the project.

Image 13 of 16

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