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  2. Kola Superdeep Borehole - Wikipedia

    en.wikipedia.org/wiki/Kola_Superdeep_Borehole

    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]

  3. What's inside the world's deepest hole?

    www.aol.com/news/whats-inside-worlds-deepest...

    This hard-to-find rusty cap in the ruins of a building in Russia's Kola Peninsula. As the race in space was winding down, soviet scientists turned inwards. You'd never guess that this is the site ...

  4. Mir mine - Wikipedia

    en.wikipedia.org/wiki/Mir_mine

    The yield decreased to about 2 carats (0.40 g) per tonne and the production rate slowed to 2,000,000 carats (400 kg; 880 lb) per year near the pit bottom. The largest diamond of the mine was found on 23 December 1980; it weighed 342.5 carats (68.50 g) and was named " 26th Congress of the Communist Party of the Soviet Union " ( Russian : XXVI ...

  5. Well to Hell - Wikipedia

    en.wikipedia.org/wiki/Well_to_hell

    The temperature deep within was 1,000 °C (1,800 °F), heat from a chamber of fire from which screaming could be heard. The Soviet Union had, in fact, drilled a hole more than 12 km (7.5 miles) deep, the Kola Superdeep Borehole , located not in Siberia but on the Kola Peninsula , which shares borders with Norway and Finland .

  6. Scientists obtain deepest rock sample from Earth's mantle - AOL

    www.aol.com/news/scientists-obtain-deepest-rock...

    Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed - and obtained a large sample ...

  7. List of sinkholes - Wikipedia

    en.wikipedia.org/wiki/List_of_sinkholes

    Harwoods Hole – cave system located in the northwest of the South Island of New Zealand, New Zealand's deepest vertical shaft; Hutchinson's Hole – a large sinkhole in Saint Ann Parish in northern Jamaica, used by a serial killer to dispose of bodies; Playa de Gulpiyuri – a flooded sinkhole with an inland beach located near Llanes, Spain

  8. Scientists Drilled So Deep Into the Center of the Earth, They ...

    www.aol.com/scientists-drilled-deep-center-earth...

    Separating the planet’s rocky crust and the molten outer core, the mantle makes up 70 percent of the Earth’s mass and 84 percent of its volume. But despite its outsized influence on the planet ...

  9. The Superdeep - Wikipedia

    en.wikipedia.org/wiki/The_Superdeep

    'Kola Superdeep') is a 2020 Russian horror film directed by Arseny Syuhin, [1] [2] [3] based on the real-life Kola Superdeep Borehole. The film focuses on a group of researchers and soldiers who investigate the mystery surrounding reports of a disease outbreak at a secret underground research facility in 1984 Russia.