The Northern Lights or aurora borealis may be visible in the U.S. this week due to a coronal hole and a "co-rotating ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

On a shelf next to my desk, I keep the books that shaped how I think about our planet—and how I cover it as a journalist ...

Global warming is flooding low-lying coastal regions, but it’s drying out the land beyond. The most serious consequences of ...