Images of plants painted on pottery made up to 8,000 years ago may be the earliest example of humans’ mathematical thought, a ...

Spotty research from a Christian activist has been used by Republican lawmakers to justify U.S. intervention in the country.

As plastic waste piles up worldwide, researchers are uncovering troubling ways it's being reused, with consequences that ...

Iran protests have revived the 2011 Arab Spring debate. But what exactly the economic scorecard of countries that saw ...