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The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol'skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth (since 1979), which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989. [1]
The legend of the bottomless hole started on February 21, 1997, when a man identifying himself as Mel Waters appeared as a guest on Coast to Coast AM with Art Bell. Waters claimed that he owned rural property nine miles (14 km) west of Ellensburg in Kittitas County, Washington, that contained a mysterious hole. According to Waters, the hole had ...
The Great Blue Hole, a giant submarine sinkhole, near Ambergris Caye, Belize. The following is a list of sinkholes, blue holes, dolines, crown holes, cenotes, and pit caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.
The hole in Antarctica's ice is persisting despite being exposed to super-cold winds — but scientists aren't sure why. A mysterious hole nearly the size of South Carolina has opened in ...
A giant hole in the earth is breaking open the land in Siberia, and photos from space show it's growing rapidly. It resembles a stingray, a horseshoe crab, or a giant tadpole.
The post 10 Biggest Unsolved Mysteries About Planet Earth appeared first on Reader's Digest. From the water that covers most of it to the moon that orbits it, here are some bizarre things about ...
The Band of Holes, also known in Spanish as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill), is a series of about 5,000–6,000 man-sized holes [1] found in the Pisco Valley on the Nazca Plateau in Peru. Local people have no idea who made them or how they were used.
Batagaika Crater Expands at NASA Earth Observatory, 27 April 2017. Siberia's growing hole in the ground, BBC Reel (video, 4:48 min.), 27 July 2020. A Giant Crater in Siberia Is Belching Up Russia’s Past. New York Times, May 23, 2024