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How many servicing missions remain? When is the next?

April 26, 2017missions remain

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How many servicing missions remain? When is the next?

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One more after SM3B. On SM4 in 2004, we will be installing the Cosmic Origins Spectrograph (COS), the most sensitive ultraviolet spectrograph ever flown on Hubble, and the Wide Field Camera 3 (WFC3), the first truly panchromatic camera (sensitive to a wide range of colors) on Hubble.