Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Geology

New Research

Ocean Current That Keeps Europe Warm Is Weakening

Two new studies show the Atlantic Meridional Overturning Circulation has decreased 15 to 20 percent over the last 150 years

USGS Shares Archival Photo of Rare Domed Lava Fountain

The unusual phenomenon occurred in the midst of a five-year eruption on Hawaii’s Kīlauea volcano

Leif Erikson pointing toward North America. Did he use a sunstone to navigate the open seas?

New Research

Simulation Suggests Viking Sunstones of Legend Could Have Worked

If they existed, the crystals—used to locate the sun’s position on cloudy days—could have helped Vikings sail to far away places

Marvin, a trailblazer in more ways than one, surveys the Antarctic terrain on her meteorite-hunting expedition of 1978-79.

Women Who Shaped History

The Rockstar Geologist Who Mapped the Minerals of the Cosmos

A professor told Ursula Marvin she should learn to cook. Instead she chased down meteorites in Antarctica

New Research

Ancient Humans Weathered the Toba Supervolcano Just Fine

New studies suggest the largest eruption in the last 2 million years didn’t push humanity to the edge of extinction as previously hypothesized

New Research

Researchers Find a Chunk of North America Stuck to Australia

When an ancient supercontinent broke apart the Queensland peninsula may have gotten left behind

The epicenter of last night's earthquake in Alaska

Trending Today

Why Did Alaska’s Big Quake Lead to a Tiny Tsunami?

Geophysics, plate tectonics and the vast ocean all determine how severe a tsunami may be

Lava cascades down the slopes of the erupting Mayon volcano in January 2018. Seen from Busay Village in Albay province, 210 miles southeast of Manila, Philippines.

Geology Makes the Mayon Volcano Visually Spectacular—And Dangerously Explosive

What’s going on inside one of the Philippines’ most active volcanoes?

Cool Finds

World’s Largest Underwater Cave System Discovered in Mexico

The 215-mile sunken freshwater labyrinth is a trove of ancient Maya artifacts

The 910-carat diamond discovered in Lesotho

Cool Finds

World’s Fifth-Largest Diamond Found in Lesotho

The 910-carat gem is a D-color, type-IIa stone, meaning it is completely colorless and has no visible impurities

New map of the Havre volcano

New Research

Scientist Autopsy the Aftermath of the Largest Underwater Volcanic Eruption of the Last Century

In 2012, miles of floating rock appeared in the Pacific. Now, scientists have studied the Havre seamount eruption that caused the mysterious pumice ‘raft’

The rock from the Apex Chert in which the fossils were found

New Research

At 3.5 Billion Years Old, Are These the Oldest Fossils?

A new analysis of this decades-old find suggests that they were indeed once biological life—but not all are convinced

The Ten Best Children’s Books of 2017

Our picks are full of silly words, weird animals and unknown histories

New Research

Gaze Into a 530-Million-Year-Old Eye, the Oldest Yet Discovered

Found on an Estonian trilobite, the eye once processed 100 “pixels” of information

The Ten Best Travel Books of 2017

These reads will remedy even the direst cases of wanderlust

Mount Agung

Trending Today

The Geology of Bali’s Simmering Agung Volcano

The high viscosity magma of stratovolcanoes like Agung makes them extremely explosive—and potentially deadly

A cross-section of the fossilised cladoxylopsid found in Xinjiang, China.

New Research

Ancient Trees “Ripped Their Skeletons Apart” To Grow

Cross-sections of 374-million-year-old tree trunks revealed a complex web of woody strands that split and repaired themselves

Trending Today

Five Things to Know About the Yellowstone Supervolcano

There’s no need to worry: It’s unlikely it will blow anytime soon

A 2014 eruption of Old Faithful, one of its many consistent outbursts

Geologists Map the Plumbing Beneath Yellowstone’s Old Faithful Geyser

Without turning over a stone, geologists imaged the subsurface supply for this iconic geyser

A bit of 3.95 billion-year-old graphite locked in quartz

New Research

This May Be the Oldest Traces of Life Yet Found

Bits of graphite, 3.95 billion years old, suggest life was churning away soon after Earth’s formation

Page 17 of 27