Gravity Recovery and Climate Experiment

The Gravity Recovery and Climate Experiment (GRACE) is a joint mission by NASA and international partners that uses two satellites working together to measure Earth's gravity field. By tracking tiny variations in gravity, GRACE can detect changes in mass distribution, such as melting ice sheets, groundwater depletion, and shifting freshwater reservoirs. These measurements help scientists understand global climate trends, monitor natural resources, and improve climate models. Essentially, GRACE provides a detailed view of how water and ice move around our planet, contributing valuable data for managing environmental change.