Science & Environnement
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Polar vortex claims eight lives as US cold snap continues
At least eight people have died in the US Midwest as the region shivers in the grip of its worst cold snap in decades.
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'Extremely dangerous' cold weather grips Prairies, Ontario, Quebec
Environment Canada warns of hypothermia, frostbite and the risk to pets
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Massive spinning ice disk forms in US river
A rare natural phenomenon taking shape in the US state of Maine is mesmerising people around the world.
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China Moon mission lands Chang'e-4 spacecraft on far side
China says it has successfully landed a robotic spacecraft on the far side of the Moon, the first ever such attempt and landing.