Earth, in most renderings, is a smooth sphere with a glossy complexion—a blue marble, as pictures snapped from space have shown us. Earth scientists know that’s not exactly true. Earth, in fact, is an ...

Jackson, K. and Hart, L. (2026) The Status of the Gravimetric Geoid across Nigeria. International Journal of Geosciences, 17, 49-65. doi: 10.4236/ijg.2026.171004 .

The Earth is round, and we know this from detailed measurements and geometric inferencing based off satellites with lasers. Earth is often described as a circle or an oval, but it is neither. As the ...

Credit: International Centre for Global Earth Models (ICGEM) / E. S., Barthelmes, F., Reißland, S., Elger, Like all scientific mysteries, the Indian Ocean geoid low (IOGL) — also known as the Indian ...

There is a place on Earth where the laws of gravity as we know them do not apply. Officially known as “the Indian Ocean geoid low” (IOGL), it is informally referred to as the Indian Ocean gravity hole ...

Dr Gladys West, the mathematician whose work laid the foundations for modern GPS and GNSS technology, has died at the age of ...