Uniform Title Memorandum of Understanding between the National Aeronautics and Space Administration of the United States of America and the German Research Centre for Geosciences of the Federal Republic of Germany for Cooperation on the Gravity Recovery and Climate Experiment Follow-On Mission (2014 January 31). Protocols, etc. (2022 February 23) Title Space : agreement between the United States of America and Germany amending and extending the Memorandum of Understanding of January 31 and February 10, 2014, signed at Potsdam and Washington, February 23 and March 15, 2022 ; entered into force March 15, 2022.