Cosmology & Space Exploration
NASA/JPL-Caltech
GRACE Mission: 15 Years of Watching Water on Earth
20 Mar 2017, 23:22 UTC
“Revolutionary” is a word you hear often when people talk about the GRACE mission. Since the twin satellites of the U.S./German Gravity Recovery and Climate Experiment launched on March 17, 2002, their data have transformed scientists’ view of how water moves and is stored around the planet.