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The week in pictures: December 1–7, 2012

In the past seven days, Curiosity's first analysis of martian soil revealed a complex chemistry within the soil, NASA probes orbiting Earth's Moon generated the highest-resolution gravity field map of any celestial body, astronomers discovered and "weighed" an infant solar system, and more.

NASA/JPL-Caltech/CSM

GRAIL creates most accurate Moon gravity map

Data from the twin spacecraft show that our satellite’s gravity field is unlike that of any terrestrial planet in the solar system. Learn more »
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