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Nearly a century ago, some astronomers proposed that we might...

Dementia is a growing health risk, affecting millions of people...

Scientists have been investigating how certain common medications might hold...

Tropical rainforests help the planet breathe. They store carbon, control...

We don't give much thought to what happens to our...

The Arctic is changing fast. Ancient ice is melting, glaciers...

Earth has faced many climate challenges, but none compare to...

Smokers and e-cigarette advocates often believe that vaping helps people...

Rivers, lava, and ice carve through landscapes in twisting, meandering...

The Kuiper belt, a distant region of icy bodies beyond...