Data from NASA satellite observations provide information about Earth's mean gravity field and inform monthly maps of the time-variable gravity field, both of which are useful tools for scientists as they study the planet's changing climate.
This map, created using data from the Gravity Recovery and Climate Experiment (GRACE) mission, reveals variations in the Earth's gravity field. Dark blue areas show areas with lower than normal gravity, such as the Indian Ocean (far right of image) and the Congo river basin in Africa. Dark red areas indicate areas with higher than normal gravity.
The Gravity Recovery and Climate Experiment and Follow On (GRACE/GRACE-FO) missions from NASA and the German Research Centre for Geosciences (GFZ) provide large-scale terrestrial water storage estimation from mid-2000 to present. GRACE uses twin satellites to accurately map variations in the Earth's gravity field and surface mass distribution.
The first global gravity model based on GOCE satellite data has been presented at ESA’s Living Planet Symposium. ESA launched GOCE in March 2009 to map Earth’s gravity with unprecedented accuracy and ...
SpaceNews: GOCE satellite launch – mapping the Earth’s gravity as never before
Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth.
A new satellite mission sheds light on Earth's gravity field and provides clues about changing sea levels.
NASA’s twin Gravity Recovery and Climate Experiment (GRACE) satellites can detect groundwater by measuring subtle variations in Earth’s gravity. This image shows the world’s average annual cycle of water storage on land, computed from four years of GRACE gravity data. Colors indicate how much groundwater comes and goes, each year, in various regions; red indicates high levels of annual ...
The gravity eld model data will be available within 60 days of acquisition. Level-3 Data Level-3 converts the monthly gravity anomalies from Level-2 into units of surface mass anomalies (typically liquid-water-equivalent-height) and maps the data to a geographical grid.
IFLScience on MSN: The place on Earth's surface where gravity is slightly weaker than everywhere else
Gravity across Earth is pretty reliable. Drop a ball on the ground in England, fly to Australia, and drop the ball again, and you will find they fall to the ground at pretty much the same rate. But we ...
The place on Earth's surface where gravity is slightly weaker than everywhere else
Yahoo: A Zone Under Antarctica Has the Weakest Gravity on Earth—and It’s Evolving, Scientists Say
A Zone Under Antarctica Has the Weakest Gravity on Earth—and It’s Evolving, Scientists Say
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 ...
A new study has revealed that gravity's effect on Earth is constantly shaping the surface of our planet. When our planet formed, it did so by pulling dust and rock toward its gravitational field. As ...
Gizmodo: NASA Wants to Track Earth’s Gravity With a Cloud of Floating Atoms in Space
NASA Wants to Track Earth’s Gravity With a Cloud of Floating Atoms in Space
USA Today: Is there gravity on the moon? Here's how the satellite's gravity compares to Earth's.
You may have seen videos of astronauts jumping on the moon. Their movements appear bouncier and lighter than how we move on Earth, and this is thanks to gravity. Gravity is "the force by which a ...
Is there gravity on the moon? Here's how the satellite's gravity compares to Earth's.
IFLScience: The Place On Earth's Surface Where Gravity Is Slightly Weaker Than Everywhere Else
Phys.org: Antarctica sits above Earth's strongest 'gravity hole.' Now we know how it got that way
Gravity feels reliable—stable and consistent enough to count on. But reality is far stranger than our intuition. In truth, the strength of gravity varies over Earth's surface. And it is weakest ...
Antarctica sits above Earth's strongest 'gravity hole.' Now we know how it got that way
MSN: A zone under Antarctica has the weakest gravity on Earth—and it’s evolving, scientists say
Here’s what you’ll learn when you read this story: The “gravity hole”—a region under Antarctica where gravity is unusually low—began to form at least 70 million years ago. Researchers used earthquake ...
Gravity does not pull equally everywhere on Earth. Variations in the planet’s internal structure create measurable differences in how strongly it tugs at the surface. The weakest region lies beneath ...