South of Sri Lanka, the Indian Ocean’s surface dips in a broad, subtle depression that has puzzled geophysicists for decades.

Earth’s lowest “gravity hole,” a mysterious depression in the Indian Ocean that experiences less gravity than the rest of the planet, is likely due to plumes of magma under the Earth’s crust, a recent ...

The ground may feel steady underfoot, but the planet is always in motion. While satellites and sensors have mapped the surface in fine detail, what lies beneath remains largely unknown. The crust, a ...

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The Indian Ocean Geoid Low (IOGL), a significant gravitational anomaly, has puzzled scientists for decades. Research suggests it formed due to interactions between tectonic plates and mantle plumes ...

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 ...

Researchers at IISc, Bengaluru, discovered a massive “Gravity Hole” at the bottom of the Indian Ocean. Scientists may have found the reason for the gravitational anomaly. Gravity Hole found at the ...

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 ...

Researchers think they’ve found the reason for the most significant drop in Earth’s gravity, known as the Indian Ocean geoid low. In this location in the Indian Ocean south of Sri Lanka, our planet’s ...

There’s a massive “hole” in the Indian Ocean, researchers say—but it’s not the kind that could drain away all that water. Instead it’s a term geologists use to describe a spot where Earth’s gravity is ...

New research suggests the IOGL is caused by hot, low-density mantle material rising from deep inside Earth — a hidden force shaping ocean basins. Far from a perfect sphere, Earth’s gravity field is ...