LA CA-ADA FLINTRIDGE, CALIF. -- WEDNESDAY, MAY 31, 2017: The Voyager is on display at JPL. Sue Fi

LA CA-ADA FLINTRIDGE, CALIF. -- WEDNESDAY, MAY 31, 2017: The Voyager is on display at JPL. Sue Finley, 80, is a subsystem and test engineer for NASA's Deep Space Network (DSN). Three days before Explorer 1 was launched, Finley began her career with the laboratory as a human computer, calculating rocket launch trajectories by hand. At JPL, she has participated in the exploration of the Moon, the Sun, all the planets, and other bodies in the Solar System. Finley has worked at NASA Jet Propulsion Laboratory (JPL) for more than 50 years and got her start as a human computer in the late 1950s. Photos taken at JPL in La Cañada Flintridge, Calif., on May 31, 2017. (Allen J. Schaben / Los Angeles Times)
Allen J. Schaben / Los Angeles Times
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