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Geology

Earth’s magnetic field surrounds the planet, with illustrated field lines emerging from the north, in orange, and looping around to the south, in blue.

A Weak Spot in Earth’s Magnetic Field Is Growing, but Scientists Say Not to Worry. Here’s a Look at What Shields Us From Space Weather

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t pose a threat to life

The Hayli Gubbi volcano in the rural northeast of Ethiopia erupted November 23.

Ethiopian Volcano Erupts for the First Time in Nearly 12,000 Years of Scientific Records

The plume from the Hayli Gubbi volcano drifted east over the Arabian Sea and extended roughly 2,200 miles

The giant structure—made up of thousands of individual funnel-shaped webs—spans over 1,000 square feet.

This Massive Web—Home to More Than 100,000 Spiders—Found in a Cave in Europe Could Be the World’s Largest

The cavern along the border of Greece and Albania is home to a terrifyingly high number of two species of arachnids that live together peacefully in complete darkness

Scientists gathered samples from the U.S. Army Corps of Engineers’ Permafrost Tunnel Research Facility in central Alaska.

Scientists Resurrect 40,000-Year-Old Microbes From Alaskan Permafrost. What They Found Raised Worries About the Future of a Warming Arctic

The experiments offer new insights into one of the “biggest unknowns” in how the climate will change in the years to come

A church with a red roof and steeple sticks out against the sprawling landscape as the sun pokes through the hazy clouds.

Northern Europe and the British Isles

Get an Eyeful of Iceland in These 20 Photos That Capture Its Natural Beauty

These selections from the Smithsonian magazine photo contest will transport you to the small Scandinavian island

Conness Glacier.

New Research

By 2100, Humans Might See a Glacier-Free Sierra Nevada for the First Time Ever

A new study suggests some glaciers have existed on the California mountain range for the entirety of known human history in North America

New research suggests that the Salmon River in northwest Alaska is full of toxic metals.

Why Is This Remote and Rugged River in Alaska Turning Orange?

New research suggests the Salmon River is full of toxic metals that are likely harming fish and other aquatic creatures

Seismic data from marsquakes provide insight into the Red Planet's interior.

How Marsquakes Have Helped Researchers Investigate the Depths of the Red Planet’s Interior

Two recent studies used seismic data from NASA’s retired InSight mission to shed light on what lies beneath Mars’ surface and what it means for the planet’s history

The newly identified tektites.

Cool Finds

Researchers Find Evidence of a Mysterious Giant Asteroid Impact, but They Don’t Know Where Its Crater Is

Special shards of glass, known as “tektites,” were hiding in plain sight in a museum collection

The hats collected in 2025 are worth nearly $6,000.

More Than 300 Hats Have Been Pulled From Yellowstone’s Geothermal Features So Far This Year

Debris, garbage and clothing often ends up in the park’s hot springs, geysers, fumaroles and mudpots

Researchers directly dated dinosaur eggs, which had filled with calcite crystals, in China.

Paleontologists Directly Date Dinosaur Eggs for the First Time, Shedding Light on the Cretaceous World 85 Million Years Ago

Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the Qinglongshan site in China

Animal life seemed to explode into a wide variety of new forms in the Cambrian period.

What Led Life to Flourish Roughly 520 Million Years Ago?

Changes to the world’s oceans and the rise of certain predators may have driven diversification

The dwarf planet Ceres, the only dwarf planet in the main asteroid belt, might have once been hospitable for life, according to a recent study.

Did the Dwarf Planet Ceres Once Host Life? Astronomers Suggest Chemical Energy Could Have Fueled Microbes Long Ago

Though no direct evidence of life has been found, models suggest Ceres had hot water shooting into its underground oceans billions of years ago, offering potentially hospitable conditions

The white diamond is about the size of a human canine tooth.

Cool Finds

She Spent Three Weeks Digging for a Diamond for Her Engagement Ring—and Unearthed a 2.3-Carat Stunner

When Micherre Fox and her boyfriend decided to get married, she flew to Crater of Diamonds State Park in Arkansas to search for the diamond herself

Stonehenge at sunset. Construction of the iconic stone circle began around 3000 B.C.E. and continued in several phases.

A Neolithic Cow’s Tooth Helps Point to the Mysterious Origins of Stonehenge’s Iconic Stones

Isotope analysis of a molar from a cow’s jawbone found buried at the monument provides details of the life story of the animal—and how it may relate to the construction of Stonehenge

A screenshot from the CCTV footage reveals the moment when the ground moved.

CCTV Footage Captures the First-Ever Video of an Earthquake Fault in Motion, Shining a Rare Light on Seismic Dynamics

A clip recorded in Myanmar in March reveals a curved path of the fault slip, which can help scientists better understand the physics of such events

Chile's Mocho-Choshuenco volcano, as seen from the air in June 2019

Melting Glaciers Will Lead to More Volcanic Eruptions, Study Suggests. Now, All Eyes Are On Antarctica

New research from the Chilean Patagonia has identified a link between glacial retreat and underground volcanic activity

Built in 1855 in the Gothic Revival style, the Smithsonian Castle is undergoing its first major renovation since the late 1960s.

Bricks From a Historic Atlantic City Church Are Getting a Second Life at the Smithsonian Castle

The First Presbyterian Church’s rare sandstone bricks will be transported to Washington, D.C., where they’ll be used to restore a 170-year-old Smithsonian building on the National Mall

An artistic rendering of the Odyssey spacecraft in orbit over Mars. 

NASA Spacecraft Orbiting Mars Captures Image of Giant Ancient Volcano Just Before Dawn

The perspective is what astronauts would see out their window if there was an International Space Station flying around the red planet

Studying foraminiferan fossils can help us understand how the climate may change in the future.

These Tiny, Beautiful Fossils Detail the History of the Ocean

Bountiful remains of foraminifera reveal how organisms responded to climate disturbances of the past

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