Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Geology

A self-portrait of NASA's Curiosity rover, taken on June 15, 2018

Curiosity Rover Spots Ancient Water Ripples on Mars, Hinting at a Past With Shallow, Ice-Free Lakes

The 3.7-billion-year-old formations in the planet’s Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface

A skin diver swims with a sperm whale in the Caribbean off of Dominica.

Eight Natural Phenomena Worth Traveling for in 2025

You won’t regret experiencing bioluminescence, swimming with sperm whales or witnessing the rush of a horizontal waterfall

The magnetic north pole, distinct from the geographic North Pole, is the point where Earth’s magnetic field lines converge.

Earth’s Magnetic North Pole Is Shifting Toward Siberia and Raising Questions About Unusual Movement

Scientists released an update to a model that maps the ever-moving pole and has significant implications for navigation systems

A map of bathymetry—or underwater topography—of Axial Seamount, an active volcano some 300 miles off the coast of Oregon.

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

Alpinists ascend along a narrow ridge of ice and snow in the Mont Blanc massif.

Inside One Scientist’s Quest to Understand Why Climate Change Is Making Europe’s Highest Peak More Dangerous

Geomorphologist and veteran climber Ludovic Ravanel is learning how Mont Blanc is shifting—and sharing his discoveries with the Alpine community

The eruption at Zavaritskii volcano created a nearly two-mile-wide caldera with layers of red, black and white from previous eruptive deposits.

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

Imperial Geyser is one of the many hydrothermal features that draw visitors to Yellowstone National Park.

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

Computer simulated global view of Venus' northern hemisphere. 

Did Venus Have Oceans? This Surprising New Study Suggests Not, a Theory That Could Upend the Search for Extraterrestrial Life

The astronomers behind the research looked to the output from the nearby planet’s toxic volcanoes for clues

A man spotted the scar while looking at Google Earth satellite imagery earlier this year.

A Man Noticed a Strange Shape on the Ground on Google Earth. It Turned Out to Be the Mark of an Undetected Tornado

Geoscientists in Australia suggest a strong tornado swept across the Nullarbor Plain in November 2022 and made the 6.8-mile-long scar on the landscape—without anyone noticing

The near side of the moon has been studied more extensively than the far side.

The Far Side of the Moon Was Volcanically Active, New Studies Confirm

Scientists analyzed the first and only rock samples from the region, which were brought back to Earth as part of a recent Chinese mission

Seismologist Won-Young Kim examines signals from a network of seismometers monitoring for earthquakes in New York, New Jersey and New England.

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

Allosaurus

This Captivating Guide Uncovers the History and Mystery of Dinosaurs in 50 Fossils

A paleontologist at the Natural History Museum in London chronicles the age of the famous and fascinating massive reptiles

A rock layer showing the S2 impact tsunami bed with chunks of ripped-up seafloor

A Giant Meteorite Ripped Up the Seafloor and Boiled Earth’s Oceans 3.26 Billion Years Ago. Then, Life Blossomed in Its Wake

Geologists suggest the catastrophic impact of “S2” delivered key nutrients to the oceans, prompting microorganisms to thrive

A color-enhanced photo of Pluto that was captured by the New Horizons spacecraft in 2015

The Seven Most Amazing Discoveries We’ve Made About Pluto

Though technically not a planet, it has as rich geology as any of its planetary siblings in the solar system

Researchers found roughly 40 depressions on the lake bed of Lake Michigan within the Wisconsin Shipwreck Coast National Marine Sanctuary.

Mysterious Craters Discovered on the Bottom of Lake Michigan Could Hold Lessons About Early Life on Earth

Scientists aren’t sure how the circular indentations some 450 feet below the surface formed, but they hope to investigate further

Agafia Lykova was born while her family was living alone in the wilderness. She is the only surviving member of the family.

This Russian Family Lived Alone in the Siberian Wilderness for 40 Years, Unaware of World War II or the Moon Landing

In 1978, Soviet geologists stumbled upon a family of five in the taiga. They had been cut off from almost all human contact since fleeing religious persecution in 1936

Mount Everest seen at sunset, as the peak’s height continues to grow at a rate of about two millimeters per year.

Geologists Reveal a Surprising Reason Why Mount Everest Grows Taller Each Year

Earth’s highest peak has gained as much as an extra 165 feet in elevation as the planet’s crust adjusts due to erosion from a river, according to a new study

Massive columns and karst formations decorate the vast chamber of Cenote Xulo.

Divers in Mexico’s Underwater Caves Get a Glimpse of Rarely Seen Artifacts, Fossils and Human Remains

Cenotes in the Yucatán Peninsula are time capsules preserving remnants of Maya culture and fossils of extinct megafauna

This fossil palm leaf (Sabalites sp.) found in Alaska can be seen in the Smithsonian’s National Museum of Natural History. Sixty million years ago, dense, wet forests covered North America, and many plants, including palms, grew in places such as Alaska where temperatures are too frigid for them today. A new study published in Science gives scientists a picture of when the Earth was warm and when it was cool over the past 485 million years.

In a Landmark Study, Scientists Discover Just How Much Earth’s Temperature Has Changed Over Nearly 500 Million Years

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit

An illustration of Earth with a ring.

Did Earth Once Have a Ring Like Saturn? Geologists Find Evidence for a Halo of Orbiting Space Rocks 466 Million Years Ago

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, according to a new study

Page 4 of 28