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19%: Researchers have mapped 19% of the ocean floor, up from only 6% in 2017, according to the Nippon Foundation-GEBCO Seabed 2030 Project. The initiative aims to chart the entire seabed by the end of the decade — information that could improve tasks like ocean navigation, laying undersea internet cables, and climate forecasting.
1.2 miles: Archaeologists discovered 20 large shafts that form a 1.2-mile-wide circle around Stonehenge. The pits are estimated to be 4,500 years old and are about 15 feet deep and over 30 feet wide. Though the purpose of the shafts is unclear, researchers say that they may have been markers to help people navigate sacred sites.
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