Volcanoes may look like simple mountains that erupted once and then fell silent, but in reality they are often the surface expression of complex processes happening deep underground. Magma can move, ...

Learn how a young volcano on Mars stayed active for nine million years and what its changing lava reveals about Mars’ interior.

Bandera Volcano Ice Cave near Grants offers a frozen escape in the desert, with ice layers up to 20 feet thick—perfect for a ...

Research shows Mars volcanoes erupted as recently as 50 million years ago, with underground magma chambers that cooked for 9 million years.

A unique phenomenon appeared in an Upstate New York park as frigid temperatures consumed the Northern Tier of the U.S. and ...

A yellow, brick-like volcanic formation found nearly 10,000 feet deep reveals how underwater eruptions fracture rock.

Chemical records preserved in Pompeii’s public baths show how polluted well water shaped Roman bathing before aqueducts arrived.

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was acquired during the planet’s formation.

Hidden deep in the heart of New Mexico lies a frozen world that defies its desert surroundings. While temperatures outside soar under the summer sun, .

Mumbai is a city that is always changing, with tall buildings and a fast pace. It's easy to forget that it also has a history ...

When Mauna Loa volcano erupted in November 1935 and threatened the local water supply, officials dropped bombs to divert the ...

In the high desert of western New Mexico, a pocket of ancient ice has quietly endured while summer temperatures soar above it. Tucked inside a lava tube beneath an old volcanic field, this frozen ...