Geologists examine a massive fissure in Arizona and find that may have existed way before it caught public attention.

A 35-mile-long fissure in East Africa signals the continents gradual separation, leading to the formation of a new ocean in ...

"It's pretty surreal to walk between two major pieces of Earth's crust that are drifting in different directions," Brooke ...

This continent may be dividing in two, according to a startling finding on the map of Earth. Africa is expected to split but only within millions of years.

There's a 2-mile-long crack in the desert of Arizona. At 10 feet wide and up to 30 feet deep in some parts, it is the largest of its kind. It continues to grow. Follow BI Video: On Twitter More ...

The Sun's surface is a highly active region in the Solar System, with fissures opening up regularly that affect us on Earth.

Scientists estimate it will take at least 5 to 10 million years for the Afar region to be fully submerged. When that happens, ...

Fissure eruptions typically dwindle to those ... Magma is molten or partially molten rock beneath the Earth's surface. When magma erupts onto the surface, it is called lava. Magma typically ...