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Shortly after NASA Administrator Michael Griffin announced that NASA would add a servicing mission to the Hubble Space Telescope, Hubble's most prominent camera and most used instrument, died. The incredible engineering challenge to understand the problem, develop a strategy to fix ACS that astronauts could perform, create the tools and new circuit board components in an incredibly short time, could not have been accomplished if the Space Telescope Imaging Spectrograph (STIS) hadn't failed a few years ealier. Goddard Engineers leveraged techniques they developed for STIS repair to fix ACS.
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