The Zayanderud River was the largest in this area of central Iran, and the river’s waters are absolutely essential to settlements here, not least to Isfahan, Iran’s third largest city with a ...

A wave of record-breaking construction projects is reshaping skylines across the globe. In Oklahoma City, a planned 1,907-foot skyscraper could become the tallest building in the Americas. Paris is ...

In 2015, researchers first noticed that KIC 8462852, better known as “Tabby’s Star,” was inexplicably dimming with no clear indication as to what might be causing this strange light pattern. Now, ...