It looked like another research vessel, but China’s 10,000-ton Exploration 3 can break ice, deploy submersibles, and map the deep Arctic

China’s Exploration 3 crossed Arctic ice with crewed submersibles, pushing deeper into one of Earth’s harshest regions.
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In Finland, divers learn to explore icy polar waters

In a square hole carved out of the thick ice, two divers vanished into the depths of an Arctic lake, leaving nothing but bubbles at the surface. Returning 45 minutes later, Marta Lukasik tapped her ...