Accuracy—The closeness of an estimated value (that is measured or computed) to a standard or accepted (true) value of a particular quantity. Strictly, it only applies to absolute physical quantities, ...

In my August 2025 GPS World newsletter column, I highlighted that a colleague reminded me that the National Geodetic Survey’s (NGS) new National Spatial Reference System (NSRS) is more than a ...

Your browser does not support the audio element. This newsletter is going to highlight some history of the Coast and Geodetic Survey and provide the latest ...

A middle-aged rocky planet, Earth offers a wondrous combination of interconnected systems. From its molten core below to the ionosphere above, planetary layers interact dynamically, moving constantly, ...