(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

Tonga eruption that poured 150 metric megatons of water vapor into the stratosphere affected the atmosphere for years A new study builds on previous research into the underwater volcano's effects on ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Volcanoes simultaneously erupting across the globe grabbed headlines ...

Blue sunsets, whirling dust devils, giant volcanoes, tiny moons, and marsquakes—there’s a lot to discover on Mars!

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...

The Kanlaon volcano in the Philippines erupted today (Dec. 9) at 3:03 p.m. local time, spouting an eruption column of up to 1.86 miles (3 kilometers) into the sky and triggering the evacuation of ...