Two twins that X-rayed the Moon.
told by GRAIL
Two twins that X-rayed the Moon.
Told by GRAIL
- Chapters
- 5
- Reading
- 8 min
- Ways to read
- 2
We were too small to land and too careful to crash by accident. Ebb and Flow flew side by side, measured how gravity tugged them apart, and showed students the Moon from inside out.
Chapters
Each chapter is one true event. Start anywhere.
- 01A long way to the MoonLaunch, a low-energy L1 cruise, lunar orbit insertion and student names2 min
- 02Cosmic tagTandem gravity ranging and student MoonKAM imaging2 min
- 03Lower and sharperPrimary and extended science phases at lower altitude1 min
- 04The X-ray MoonCrust thickness, porosity and buried magma dikes from GRAIL gravity1 min
- 05A place named for SallyFinal fuel-gauge burn and controlled impact at the Sally K. Ride Impact Site2 min
About this book
GRAIL tells its own story in an imagined voice. Those lines are retellings, not quotations. The events, dates and numbers come from the mission records listed here, and each chapter links its own sources as you read.
The machine illustration is AI-made. Photos are from the NASA Image and Video Library and are credited where they appear.
Meet GRAILSources · 12
- A long way to the Moonscience.nasa.gov
- GRAIL-A (Ebb) · NSSDCAnssdc.gsfc.nasa.gov
- GRAIL-B (Flow) · NSSDCAnssdc.gsfc.nasa.gov
- PIA13966 · NASA Image Libraryimages-api.nasa.gov
- GRAIL Lunar Impact Site Named for Astronaut Sally Ride · NASA Sciencescience.nasa.gov
- The X-ray Moonimages-api.nasa.gov
- PIA16588 · NASA Image Libraryimages-api.nasa.gov
- PIA16600 · NASA Image Libraryimages-api.nasa.gov
- PIA16493 · NASA Image Libraryimages-api.nasa.gov
- PIA16492 · NASA Image Libraryimages-api.nasa.gov
- PIA16603 · NASA Image Libraryimages-api.nasa.gov
- Impact! · LROClroc.im-ldi.com
Sources
- A long way to the Moonscience.nasa.gov
- GRAIL-A (Ebb) · NSSDCAnssdc.gsfc.nasa.gov
- GRAIL-B (Flow) · NSSDCAnssdc.gsfc.nasa.gov
- PIA13966 · NASA Image Libraryimages-api.nasa.gov
- GRAIL Lunar Impact Site Named for Astronaut Sally Ride · NASA Sciencescience.nasa.gov
- The X-ray Moonimages-api.nasa.gov
- PIA16588 · NASA Image Libraryimages-api.nasa.gov
- PIA16600 · NASA Image Libraryimages-api.nasa.gov
- PIA16493 · NASA Image Libraryimages-api.nasa.gov
- PIA16492 · NASA Image Libraryimages-api.nasa.gov
- PIA16603 · NASA Image Libraryimages-api.nasa.gov
- Impact! · LROClroc.im-ldi.com
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