![Seeking the Grail](https://www.nasa.gov/wp-content/uploads/2023/03/214699main_PIA10130_full.jpg)
Seeking the Grail
The Gravity Recovery and Interior Laboratory, or GRAIL, mission will fly twin spacecraft in tandem orbits around the moon to measure its gravity field in unprecedented detail.
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https://www.nasa.gov/image-detail/seeking-grail/
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