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World-First Ice Vault Is Preserving Earth's Climate History

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A Hidden Brain Signal Can Predict Alzheimer's Years Before Diagnosis

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Astronauts Return to Earth With Lasting Brain Changes

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Scientists Discover 7 Rare Mummified Cheetahs in Arabian Desert

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NASA Brings Astronauts Home Early After Unprecedented Medical Issue in Space

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A Landmark 'High Seas Treaty' Has Arrived. Here's Why It's a Big Deal.

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We Were Wrong About Restrictive Diets, Decades of Research Says

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NASA Plans to Put a Nuclear Reactor on The Moon by 2030. Here's Why.

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A Single Night's Sleep Could Predict Your Risk For More Than 100 Diseases

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Mosquitoes Are Feeding on Us More Often – And Scientists Say We're to Blame

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A Ketamine-Related Health Problem Is Surging in Young People, Doctors Warn

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Scientists Are Finally Closing In on a Treatment For Huntington's Disease

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Exercise Is Emerging as a Powerful Treatment For Depression

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WATCH: NASA Conducts First-Ever Medical Evacuation From The ISS

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The Best Medicine For Joint Pain Isn't What You Think, Says Expert

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An Ancient Wolf Cub's Last Meal Just Rewrote The Woolly Rhino Extinction Story

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Just One Gene May Be Responsible For Over 90% of Alzheimer's Cases

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Spiral Galaxy Caught Spraying Huge Jets of Super-Hot Gas Like a Sprinkler

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CPR on TV Shows Can Save Real Lives

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One Simple Diet Change Helps Older Adults Lose Fat And Boost Metabolism

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