A Common 'Forever Chemical' Has Just Been Linked to Liver Cancer in Humans

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Arctic Blast Hitting The US Predicted to Break Hundreds of Weather Records

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This Breathtaking Photo of Earth Really Puts Everything Into PerspectiveWhere in Space Is Elon Musk's Roadster Right Now?

This 6-Year-Old Is So Sure Pluto Should Be a Planet, She Sent an Adorable Letter to NASAWe Need to Talk About What Happens When You Get Your Period in Space