It used to be that drawing heat from deep in the Earth was practical only in geyser-filled places such as Iceland. But new ...

With Yellowstone sitting atop a colossal volcano, experts warn that a future eruption could cover South Dakota in ash, ...

Volcanoes show us that the Earth is full of life and energy. Some stay silent for hundreds of years, but others are always ...

Tenerife may be known for its beaches, but it’s the island’s stargazing that leaves the biggest impression, boasting some of ...

People travel thousands of miles to reach Hawaiʻi—one of the most isolated landmasses on Earth. Its eight main islands help ...

Earth’s highest peak isn’t the point that reaches closest to outer space, and the reason has nothing to do with Everest at ...

Unexpected biosignatures found in a startlingly blue volcanic goo beneath the Pacific Ocean may offer clues to life's origins.

The formation, known as the Trou au Natron, lies in northern Chad within the Tibesti Mountains, the highest range in the ...

ANTIGUA, Guatemala – Volcan de Fuego in southern Guatemala kicked off Halloween by lighting up the early morning sky with explosions and lava bursts. Time-lapse footage shows the volcano repeatedly ...

Mars’ warmest latitudes hide a paradox: thick, buried ice where midday temperatures can reach a balmy 68°F (20°C). After years of study, planetary scientists believe they finally know how those ...