Space Cooperation: Gravity Recovery and Climate Experiment (GRACE) Mission

Memorandum of understanding signed November 13 and December 10, 1998; entered into force December 10, 1998.

Agreement amending and extending the memorandum of understanding.  Signed February 26 and 27 and March 16, 2009; entered into force March 16, 2009.

Agreement extending the memorandum of understanding, as amended and extended.  Signed December 16, 17, and 18, 2009; entered into force December 18, 2009.

Agreement signed June 10, 2010; entered into force June 10, 2010.

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U.S. Department of State

The Lessons of 1989: Freedom and Our Future