NASA's GRAIL Creates Most Accurate Moon Gravity Map
The moon - colour - Lumix FZ7 - 25 March 2007 20:05. by jlcwalker
License (according to Flickr): Attribution License
License (according to Flickr): Attribution License
NASA's GRAIL app has certain details about the science and purpose of the mission, and attributes day-to-day mission information updates, pictures of the spacecraft throughout assembly and testing, video clips and a countdown timer to launch. ' Download app This image depicting the porosity of the lunar highland crust was acquired making use of bulk density data from NASA's GRAIL mission and independent grain density dimensions from NASA's Apollo moon mission samples in addition to orbital remote-sensing data. Image credit: SA/JPL-Caltech / IPGP
This map reveals the gravity field of the moon as measured by NASA's GRAIL mission. Image credit: NASA/ARC/MIT
PASADENA, Calif. -- Twin NASA probes orbiting Earth's moon have actually produced the greatest resolution gravity field map of any type of celestial body.
People:
Maria Zuber
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dikes
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Mark Wieczorek
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| Sentiment | Quote |
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| 0.0292791 | "With our new crustal bulk density determination, we find that the average thickness of the moon's crust is between 21 and 27 miles (34 and 43 kilometers), which is about 6 to 12 miles (10 to 20 kilometers) thinner than previously thought," said Mark Wieczorek, ... |
| 0.111286 | "With our new crustal bulk density determination, we find that the average thickness of the moon's crust is between 21 and 27 miles (34 and 43 kilometers), which is about 6 to 12 miles (10 to 20 kilometers) thinner than previously thought," said Mark Wieczorek, GRAIL co-investigator at the Institut de Physique du Globe de Paris. "With this crustal thickness, the bulk composition of the moon is similar to that of Earth. This supports models where the moon is derived from Earth materials that were ejected during a giant impact event early in solar system history." |
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Jeff Andrews-Hanna
Overall Sentiment: 0.599927
Relevance: 0.277592
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| 0.0994205 | "We used gradients of the gravity field in order to highlight smaller and narrower structures than could be seen in previous datasets," said Jeff Andrews-Hanna, ... |
| 0.167682 | "We used gradients of the gravity field in order to highlight smaller and narrower structures than could be seen in previous datasets," said Jeff Andrews-Hanna, a GRAIL guest scientist with the Colorado School of Mines in Golden. "This data revealed a population of long, linear gravity anomalies, with lengths of hundreds of kilometers, crisscrossing the surface. These linear gravity anomalies indicate the presence of dikes, or long, thin, vertical bodies of solidified magma in the subsurface. The dikes are among the oldest features on the moon, and understanding them will tell us about its early history." |
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Additional Info:
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Organization: Gravity Recovery and Interior Laboratory
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Organization: Massachusetts Institute of Technology
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Organization: Science Mission
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Company: Lockheed Martin Space Systems
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Source URL: NASA's GRAIL Creates Most Accurate Moon Gravity Map
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NASA's GRAIL Creates Most Accurate Moon Gravity Map
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Twin NASA probes orbiting Earth's moon have generated the highest resolution gravity field map of any celestial body.
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