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Geology

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

A plume of ash and gas rises from Mount Etna on the Italian island of Sicily on Monday. The eruption also featured lava fountains and a pyroclastic flow.

Mount Etna’s Spectacular Monday Eruption Marks the Volcano’s Most Intense Activity in Years

The explosion was the strongest since 2021, expelling ash, dust, lava and a pyroclastic flow, but no injuries or deaths were reported

Geoscientist Martin Köhler stands in front of Maka Lahi, which measures 46 feet by 39 feet by 22 feet—about the same size as a two-story house.

A 164-Foot Tsunami Pushed This Enormous Boulder Atop a Cliff in Tonga 7,000 Years Ago

The hulking rock, called Maka Lahi, is the size of a two-story house and sits on a 120-foot-tall cliff, covered in vegetation

Geologist Michael Ackerson holds a sample from Canada's Acasta Gneiss formation, home to some of the oldest rocks on the planet.

The Secrets of How Life Began May Be Hidden Inside the World’s Oldest Rocks

Smithsonian researchers trekked to a remote site in northern Canada to collect four-billion-year-old rock samples that could unlock mysteries about Earth’s earliest history

Houston is the fastest-sinking of the 28 most populated U.S. cities, according to a new study that examined the urban areas through satellite observations. The Texas city got most of its water from the ground in the 1950s to ’70s, which led to subsidence.

The Land Beneath the Biggest U.S. Cities Is Sinking, Finds New Analysis of Satellite Data

Largely due to groundwater pumping and shifting of land after the last ice age, major urban areas are subsiding, which could destabilize buildings or worsen flooding

The mosasaur vertebra measured more than seven inches wide.

Geologists Stumble Upon Remains of Giant ‘Sea Monster’ in Mississippi, Likely the Largest Mosasaur Ever Identified in the State

Researchers uncovered one vertebra, and based on its size, they estimate the massive creature was at least 30 feet long when it roamed the shallow seas that covered the region roughly 66 million years ago

A variety of marine creatures and unique features can be found in the deep sea off Norway, including the dumbo octopus, colorful anemones and venting chimneys.

As Norway Considers Deep-Sea Mining, a Rich History of Ocean Conservation Decisions May Inform How the Country Acts

In the past, scientists, industry and government have worked together in surprising, tense and fruitful ways

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