volcano

Scientists have noticed that global precipitation tends to drop after a volcanic eruption, but they haven't known all the factors that can influence this effect. Now, thanks to a new study, a group of researchers thinks the missing link is El Niño, the weather pattern we normally see every 2 to 7 years.

The surface of Venus is dotted with ring-like structures named coronae, produced by volcanic activity. They appear to be much like the Hawaiian islands on Earth, which are products of volcanic activity from a plume of hot material welling up from Earth’s mantle.

Do you live near a dormant volcano? You might have a weird wonderland right beneath your feet.

In Hawaii, there's a lava cave named Kazumura that's over 40 miles long, the largest in the world. When a volcano erupts, it sends lava rivers rushing downhill. As these rivers flow, their sides and surfaces crust over, forming a tunnel.

The extinction at the end of the Cretaceous period is Earth's greatest murder mystery. 66 million years ago, something killed about 75 percent of all animals, including the dinosaurs.