10K views · 126 reactions | A cloud band moving down from the Indian...

Beneath the Indian Ocean lies a vast and baffling mystery — a region where Earth’s gravity is weaker than normal. This isn’t a hole or crater, but a “dip” in the planet’s geoid — the shape Earth’s surface would take if only gravity and rotation defined it. Known as the Indian Ocean Geoid Low, this anomaly covers millions of square kilometers and has puzzled scientists for decades. Researchers believe it may have formed from ancient magma plumes or dense mantle material deep within the Earth, but