After 15 Years NASA and DLR Prepare to Say Goodbye to GRACE

On March 17, 2002, a pair of satellites nicknamed “Tom” and “Jerry”┬álaunched aboard a Russian Rockot vehicle from the Plesetsk Cosmodrome in Russia. It was the start of the Gravity Recovery and Climate Experiment, aka GRACE, a partnership mission between NASA and the German space agency (DLR) to map Earth’s gravity field and how it…