Oldest Known Impact Crater Discovered in Australia
The discovery bolsters the theory that meteorite impacts played an important role in Earth’s early geological history
‘Volcanic Unrest’ at Alaska’s Mount Spurr Suggests 50-50 Chance an Eruption Could Be Coming
Volcanologists are closely monitoring the 11,070-foot-tall stratovolcano, located roughly 75 miles from Anchorage, after a recent uptick in earthquakes
An Undersea Volcano Near Oregon May Erupt in 2025, Scientists Predict. It Could Help Improve Eruption Forecasts
Axial Seamount doesn’t pose a threat to humans, but observing what happens before and after its potential eruption could help scientists learn about submerged volcanoes and strengthen predictions
Scientists Find the Mysterious Source of the Massive 1831 Volcanic Eruption That Cooled Earth and Made the Sun Appear Blue
The climate-altering eruption came from the Zavaritskii volcano on an uninhabited island in the Pacific that once hosted a Soviet submarine base, according to a new study
Will Yellowstone Erupt Soon? Scientists Are Using New Techniques to Find Out
Using magnetotellurics, researchers produced a detailed picture of the magma beneath Yellowstone, offering insights into a distant future of possible volcanic activity
Geologists Finally Explain New Jersey’s Strange Earthquake That Rocked the Northeast in April
A new study suggests the seismic energy traveled outward from a previously unmapped fault, emanating from the hypocenter in bouncing waves that shook distant areas
Largest Diamond Since 1905 Unearthed by Miners in Botswana
Volcanic eruptions long ago brought the 2,492-carat diamond—the latest in a string of stunning discoveries over the last decade—to the surface
Slow-Motion Ripples in Earth’s Mantle Built Mysterious and Stunning Highland Landscapes, Study Finds
Following the break-up of an ancient supercontinent, waves propagated through the hot, rocky layer beneath the planet’s brittle crust and reshaped its surface over millions of years
Scientists Drill Deeper Into Earth’s Mantle Than Ever Before, Probing for the Origin of Life on Earth
The record-setting rock samples will provide insight into the chemical processes that may have kick-started life on our planet
Hidden Underground Magma Pools Fueled Iceland’s Volcanic Eruptions, Study Suggests
A subterranean plumbing system of magma beneath the island’s Reykjanes Peninsula may have helped set off the recent series of eruptions that could last for centuries
Geologists Uncover Remnants of Earth’s Mantle That Have Lasted Over 2.5 Billion Years
New research suggests that a discrepancy in rocks shows they endured extreme heat, and reveals more about an ancient part of our planet’s history
Earth’s Inner Core May Be Slowing Its Spin, Another Study Suggests
New research adds evidence to the controversial idea that the hot, solid ball at the center of our planet has been reducing its speed for years as part of an oscillating cycle
Earth’s Magnetic Field Nearly Collapsed 600 Million Years Ago. Then, Weird and Complex Life Evolved
A new study suggests more solar radiation reached Earth while the magnetic field weakened, leading to a rise in oxygen that drove an explosion of multicellular organisms during the Ediacaran Period
How the Great Alaska Earthquake Shook Up Science
Sixty years ago, the largest earthquake in U.S. history shocked geologists. It’s still driving scientific discoveries today
Why Central American Volcanoes Are Ideal for Studying Earth’s Evolution
The volcanic arc extending from Mexico to Costa Rica expels a variety of magma types that make for a geological paradise
Mysterious Lumps in Earth’s Mantle May Be Remains of the Crash That Formed the Moon
Chunks of a protoplanet called Theia became lodged within Earth after the two worlds smashed together, new computer simulations suggest
Scientists Extract Rocks From Earth’s Mantle
They drilled into a mountain at the bottom of the North Atlantic Ocean
See the Breathtaking Ocean Life Found at Deep-Sea Vents
An international team of scientists discovered new hydrothermal vents along the Mid-Atlantic Ridge releasing mineral-rich water hot enough to melt lead
The Spin of Earth’s Inner Core May Be Changing, Scientists Say
A new study finds our planet’s iron center shifts between spinning slightly faster and slightly slower than the surface—but not all experts agree
How the Earth’s Mantle Sends Water Up Toward the Surface
A new model suggests “mantle rain” ensures we will always have a surface ocean
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