Contrary to what you may intuit, the Earth's gravity isn't uniform, and there's one place where it's much weaker than anyone ...

Using advanced computer simulations, researchers have reconstructed the geological past of the region, uncovering a surprising culprit: a mass of hot, low-density material rising from the deep mantle.

The Indian Ocean "gravity hole" is Earth's deepest geoid low. Its weak gravitational pull makes sea levels here 348 feet lower than average, creating a 1.2-million-square-mile anomaly southwest of ...