A new map of Mars’ gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. “Gravity maps allow us to see inside ...

A discovery about the moon made in the 1960s is helping researchers unlock secrets about Earth’s ocean today. By applying a method of calculating gravity that was first developed for the moon to data ...

Scientists have found evidence that Mars' crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet's interior structure and evolution. NASA ...

A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. "Gravity maps allow us to see inside ...

The Earth is a dynamic system—it has a fluid, mobile atmosphere and oceans, a continually changing distribution of ice, snow, and groundwater, a fluid core undergoing hydromagnetic motion, a mantle ...

The European Space Agency's GOCE satellite has delivered a beautiful map of Earth's gravity field that will also serve important scientific purposes for years to come. GOCE, which was launched in ...

On March 17, 2002, the satellite duo GRACE was launched to map the Earth's gravity field more precisely than ever before. The measurements make it possible to monitor the terrestrial water cycle, the ...

In 2011, NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission sent a pair of washing-machine-size satellites into low lunar orbit for nearly a year. Thanks to the spacecraft's precise dance ...

AMAZING GRACE Data collected by the twin Gravity Recovery and Climate Experiment (Grace) satellites have produced the most accurate map yet of Earth's geoid, or gravity field, even before the ...

NASA scientists have found evidence that Mars' crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet's interior structure and evolution. A ...