Earth’s center of mass is constantly on the move, shifting by a few millimeters as enormous amounts of water, ice, and even air migrate around the planet with the seasons. NASA scientists have developed a more precise way to track these tiny swings using laser-ranging satellites, GPS data, and measurements of how water and ice deform Earth’s crust.
The Earth's mass centre does not sit in place. It moves with a few millimeters, with water, ice and even the air moving from one side of the planet to another from one season to another. NASA researchers...