AdvertisementNASA Launching New Satellites To Measure Earth's Lumpy GravityPlay03:45Download AudioMay 21, 2018Christopher JoycefacebookEmailThe Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission, shown in an artist's rendering, will measure tiny fluctuations in Earth's gravitational field to show how water moves around the planet. (NASA/JPL)
