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Mystery Earth's Largest Gravitational Hole Bottom Indian Ocean

Mystery Earth's Largest Gravitational Hole Bottom Indian Ocean The Mystery of Earth's Largest Gravitational Hole at the Bottom of the Indian Ocean (Photo: Times of India) -  The gravitational hole at the bottom of the Indian Ocean is the largest on Earth, and this has been a mystery that has baffled scientists since the hole was discovered in 1948.  Now a team of researchers from the Indian Institute of Science (IIS) think they have found the answer. According to them, the hole in the Indian Ocean was caused by fragments from a sunken ocean or the bottom of another much older ocean.  In this mysterious part of the Indian Ocean, the gravitational pull is much weaker than anywhere else on Earth. This gravitational hole, is the largest (and deepest) gravitational anomaly in the world, and is officially known as the Indian Ocean Geoid Low (IOGL). The Geoid is a theoretical model of worldwide sea level, whose irregularities are related to variations in Earth's gravit