Cassini might have gotten a very emotional send-off at the close of its 20-year journey, but it's not the only long-term space mission being retired this season. Today, the joint NASA-German Gravity Recovery and Climate Experiment (GRACE) has ended o...from Engadget RSS Feed https://www.engadget.com/2017/10/27/nasa-and-germany-are-about-to-refresh-their-climate-science-sate/
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