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History Today: When USS Nautilus became the first submarine to travel under the North Pole
Published on: Aug. 3, 2025, 9:34 a.m. | Source: Firstpost
US nuclear submarine USS Nautilus (SSN‑571) became the first vessel to cross the North Pole fully submerged. USS Nautilus was the world's first operational nuclear-powered submarine. Codenamed Operation Sunshine, the mission aimed to test the feasibility of navigating beneath the polar ice cap
