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Latest Articles

What Causes Eerie Volcanic Lightning?
Volcanic eruptions, like this one at Sakurajima volcano in Japan, generate amazing displays of lightning.
April 18th, 2016
Lightning flashing in the sky during volcanic eruptions stems both from ash and from ice, scientists find.
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12 Supereruptions Pockmark Path of Yellowstone Hotspot
Southern Idaho Canyon
March 28th, 2016
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.
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Earth's Fiery Depths Filled with Brimstone
An illustration of Earth's core and its composition.
February 26th, 2016
Earth's inner core is partly light elements such as sulfur, hydrogen and silicon, a new study finds. The research can reveal details of the planet's violent formation as well as the magma ocean that emerged afterward.
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'Wasteland' Frog Fits on a Thumbnail, Chirps Like a Cricket
March 15th, 2016
A newly described species of frog is so small that it can sit comfortably on the tip of your thumb, and has a distinctive call that sounds like a cricket's chirp.
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In Photos: Adélie Penguins of East Antarctica
Adélie penguins come to the edge of sea ice to feed on krill and fish.
February 16th, 2016
A colony of Adélie penguins, some 150,000 individuals, on Cape Denison in Commonwealth Bay, in East Antarctica, went missing after a Rhode Island-sized iceberg called B09B crashed into the bay's Mertz Glacier. Here's a look at the penguins.
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Distant Volcanic Roars Reveal Eruption Hazards
Alaska's Pavlof volcano erupts in 2013, shooting a plume of ash into the air. A steam plume from melting snow and ice can also be seen.
April 4th, 2016
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.
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Earth's Early Ocean Was No Scalding Sea
The Barberton mountains preserve some of Earth's oldest rocks.
February 26th, 2016
Rocks from the deep past, some 3.5 billion years old, were deposited on a deep, cold ocean floor, not in a scalding sea. That finding suggests the planet was in a Goldilocks state ever since life appeared.
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'Warm Blob' Caused Wild Climate Swings During Last Ice Age
During the last ice age, Greenland experienced wild climate swings, but even during its coldest stints, a blob of warm surface water lurked nearby.
February 23rd, 2016
A new study reveals how Greenland's unstable ice age climate was influenced by Atlantic Ocean currents.
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