From a telescope network that spans much of the globe to a psychology study that spans 67 countries, here are the biggest ...

Children from around the world track Santa Claus as he sweeps across the earth, delivering presents and defying time. Each ...

A look back at the horrible loss of life. By Hannah Beech A global crackdown on fentanyl has led cartels to innovate production methods and test their risky formulas on people, as well as ...

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