GRAIL Ebb and Flow lunar gravity-mapping spacecraft family
NASA’s GRAIL mission flew the twin Ebb and Flow spacecraft in tandem around the Moon from 2011 to 2012. Their precision ranging measurements produced the highest-resolution gravity map of any celestial body, revealing the Moon’s internal structure before both spacecraft were deliberately impacted on December 17, 2012.
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Identity
- Aliases
- GRAILGravity Recovery and Interior LaboratoryGRAIL-A EbbGRAIL-B FlowEbb and Flow
- Family Name
- GRAIL
- Full Name
- GRAIL Ebb and Flow lunar gravity-mapping spacecraft family
- Roles
- orbiterresearch
- Status
- retired
- Type
- spacecraft
Details
- Description
- NASA’s GRAIL mission flew the twin Ebb and Flow spacecraft in tandem around the Moon from 2011 to 2012. Their precision ranging measurements produced the highest-resolution gravity map of any celestial body, revealing the Moon’s internal structure before both spacecraft were deliberately impacted on December 17, 2012.
- First Flight Year
- 2,011
- Last Flight Year
- 2,012
Links
- Official Url
- https://science.nasa.gov/mission/grail/
Assets & Meta
- Creation Time
- August 13, 2026 at 12:37:27 UTC
- Updated Time
- August 13, 2026 at 12:37:27 UTC