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| Image | Name | Short Description | Launch Date | Target |
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Gravity Recovery and Climate Experiment | An award-winning mission that's changed the way we study Earth's gravitational forces, the Gravity Recovery and Climate Experiment, or GRACE, mission flies twin spacecraft in tandem around Earth to study key changes in the planet's waters and ice sheets. | 03/17/2002 | Earth |
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Gravity Recovery and Interior Laboratory | The Gravity Recovery and Interior Laboratory, or GRAIL, mission was designed to create the most accurate gravitational map of the moon to date, which when combined with topographic data, can provide insight into the moon's internal structure, composition and evolution. | 09/10/2011 | Moon |
