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Gravity field of the Orientale basin from the Gravity Recovery and Interior Laboratory Mission

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Science  28 Oct 2016:
Vol. 354, Issue 6311, pp. 438-441
DOI: 10.1126/science.aag0519

On the origin of Orientale basin

Orientale basin is a major impact crater on the Moon, which is hard to see from Earth because it is right on the western edge of the lunar nearside. Relatively undisturbed by later events, Orientale serves as a prototype for understanding large impact craters throughout the solar system. Zuber et al. used the Gravity Recovery and Interior Laboratory (GRAIL) mission to map the gravitational field around the crater in great detail by flying the twin spacecraft as little as 2 km above the surface. Johnson et al. performed a sophisticated computer simulation of the impact and its subsequent evolution, designed to match the data from GRAIL. Together, these studies reveal how major impacts affect the lunar surface and will aid our understanding of other impacts on rocky planets and moons.

Science, this issue pp. 438 and 441

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