The geoid (the surface of equal gravitational potential of a hypothetical ocean at rest) serves as the classical reference ...

The prospect of heat waves without end, increasingly destructive floods, relentless drought, rapidly rising sea levels, and the risk of “point of no return” tipping points require humanity to swiftly ...

Petroglyphs on sandstone at a national park in Chad bear witness to wildlife that once roamed the area before the continent’s ...

Although Earth is approximately spherical, its gravity field doesn't adhere to the same geometry. In visualizations, it more closely resembles a potato, with bumps and divots. One of the strongest of ...

A mysterious gravity dip beneath Antarctica is growing stronger, shaped by deep Earth forces over millions of years. Scientists say it may even have influenced ancient sea levels and ice sheet growth.

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...