When sea ice forms later, the communities of tiny algae that live within it change too. Detecting these early signals now ...

A massive African superplume appears to be driving the divide of one of the world's largest continents. Here's what we know.

A massive boulder named Maka Lahi was recently found about 650 feet from the edge of a cliff in Tonga, and researchers believe that it may have been deposited by a tsunami around 7,000 years ago.