Go inside a nuclear sub's torpedo room
CNN's Jim Sciutto goes inside a US nuclear submarine's torpedo room as the crew on-board conducts tests in the Arctic.
01:11 - Source: CNN
Submarines 8 videos
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Go inside a nuclear sub's torpedo room
01:11
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File picture released by Telam showing the ARA San Juan submarine being delivered to the Argentine Navy after being repaired at the Argentine Naval Industrial Complex (CINAR) in Buenos Aires, on May 23, 2014. 
The Argentine submarine is still missing in Argentine waters on November 17, 2017, after it lost communication more than 48 hours ago. / AFP PHOTO / TELAM / ALEJANDRO MORTIZ / Argentina OUT        (Photo credit should read ALEJANDRO MORTIZ/AFP/Getty Images)
Searchers race to find missing navy sub
02:00
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File picture released by Telam showing the ARA San Juan submarine being delivered to the Argentine Navy after being repaired at the Argentine Naval Industrial Complex (CINAR) in Buenos Aires, on May 23, 2014. 
The Argentine submarine is still missing in Argentine waters on November 17, 2017, after it lost communication more than 48 hours ago. / AFP PHOTO / TELAM / ALEJANDRO MORTIZ / Argentina OUT        (Photo credit should read ALEJANDRO MORTIZ/AFP/Getty Images)
Argentine navy loses contact with submarine
01:22
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More clues of the H.L. Hunley mystery are being revealed during conservation of the American Civil War submarine. Researchers in a North Charleston, South Carolina, laboratory on Wednesday June 7, 2017 unveiled the crew compartment -- which had been sealed by more than 130 years of ocean exposure and encrusted sediment.
New details of Civil War sub's past uncovered
01:36
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On April 16, 2017 shows Korean People's ballistic missiles being displayed through Kim Il-Sung square during a military parade in Pyongyang marking the 105th anniversary of the birth of late North Korean leader Kim Il-Sung.
U.S. sends sub to Korean peninsula amid tension
02:51
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BUSAN, Republic of Korea (Dec. 24, 2010) The Ohio-class guided-missile submarine USS Michigan (SSGN 727) arrives in Busan for a routine port visit. Michigan, homeported in Bangor, Wash., is on a deployment to the U.S. 7th Fleet area of responsibility. (U.S. Navy photo by Logistics Specialist 2nd Class Raymond Solis/Released)
US submarine arrives in South Korea
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WWII shipwrecks go missing
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USS Indianapolis wreckage found 72 years later
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