At 10, GRACE continues defying, and defining, gravity
Monday, March 19, 2012 - 09:03
in Astronomy & Space
(PhysOrg.com) -- Just as the lead characters in the popular Broadway musical "Wicked" sing about defying gravity, the low-Earth orbiting twin spacecraft of NASA's Gravity Recovery and Climate Experiment (GRACE) continue to defy gravity 10 years after launch, while also continuing to help define it. Along the way, they've also produced an amazing array of breakthrough science that is giving us a new understanding of changes in Earth's natural systems.