Dec 28, 2020 · A new satellite mission sheds light on Earth's gravity field and provides clues about changing sea levels.

Nov 21, 2025 · Gravity is the field around physical bodies, such as planets, that draws objects toward its center. Earth's gravitational field can be measured by orbiting satellites that can detect changes to it. …

Earth's mass is distributed between various landforms and features -- such as mountain ranges, oceans, and deep sea trenches -- that all have different mass, which creates an uneven gravity field. This …

Dec 28, 2020 · This project, called the Gravity Recovery and Climate Experiment (GRACE), measures changes in the Earth’s gravity. But how do gravitational differences tell scientists about the presence …

Nov 14, 2012 · NASA's Crustal Dynamics Data Information System (CDDIS) provides data and information to support the international space geodesy community.

Apr 19, 2021 · The technique for accomplishing this is called Precise Orbit Determination (POD). POD is part of the Earth science discipline of geodesy, which is concerned with the shape, gravity field, and …

Nov 21, 2024 · NASA ASDC's Direct Data Download tool provides the ability to access and download all publicly available data collections via https.

SLR determines the geocentric position of an Earth satellite, allowing for the precise calibration of radar altimeters and separation of long-term instrumentation drift from secular changes in ocean topography.

Nov 21, 2025 · Geodetics, or geodesy, is the science of studying Earth’s shape, gravity and its effect on phenomena such as polar motion, waterbody tides, and tectonic motion in three-dimensional space …

Dec 27, 2020 · An artistic rendering shows that Earth’s rotation has dragged space-time with it. A particle dropping from infinity towards the center of the planet would not fall in a straight line; it would …