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Google Earth reveals mysterious 30-mile artwork thought to be world's largest geoglyph
Live Science.Geoglyphs are designs formed with earth or stone that have cropped up across the globe, from Kazakhstan to California and parts of rural England.This is the first time a glyph has ever been found in India - and it covers a massive 100,000 square metres, or 14 times the area of a football pitch.In fact, it's so big that the people who originally created it probably never saw the artwork in its entirety, according to scientists in a paper published last month.The design features several intricate spirals and a long winding line that doubles back on itself.It was uncovered by Carlo and Yohann Oetheimer, father-and-son researchers who are based in France.They surveyed an area of the Thar desert near the border of Pakistan using