Volcanic lightning is more than flashy — it may help predict eruption dangers at night and during storms.
Lightning flashing in the sky during volcanic eruptions stems both from ash and from ice, scientists find.
The roar of a volcano erupting on a remote Alaska island reveals important details about the blast, such as its size and location, a new study reports. And now scientists are listening.
Up to 12 massive volcanic blasts occurred between 8 million and 12 million years ago in Idaho's Snake River Plain, leading up to today's Yellowstone supervolcano, new research reveals.
In the 20th century, researchers realized that the Earth's crust is not one piece, but is made up of many huge tectonic plates upon which the continents ride.
Ancient hominins may have harnessed fire from nearby lava flows to cook food, keep warm and evolve bigger and smarter brains, new research proposes.
After being quiet for 110 years, the cone-shaped Momotombo volcano in Nicaragua rumbled to life on Dec. 1. A haze of smoke continues to emanate from the volcano's crater.
Mauna Kea, Hawaii's tallest volcano, is circled by clouds in a photo taken by an International Space Station astronaut on Nov. 1, 2015.
A giant superchain of volcanoes in Australia may be the largest string of continental volcanoes on Earth, new research suggests.
The ashy peak of a volcano stands out amid a snowy scene, hinting at a recent eruption, in newly released images from NASA.
Concentric circles of rocky hills and valleys in South Africa tell a story of a billion-year-old collapsed volcano in newly released photos from NASA.