Mountains
A Mysterious Seismic Signal Lasted Nine Days Last Year. It Was a Mega-Tsunami Caused by Climate Change, Researchers Say
A melting glacier caused a mountain in Greenland to collapse into a narrow fjord, setting off an oscillating wave that rattled seismic detectors around the world
More Than 200 Dead Bodies Have Been Left Behind on Mount Everest, and Many Mark the Path to the Summit
Mountaineers who perished on the world's highest peak have become landmarks for the living, though recovery crews have made risky expeditions to remove some of the corpses
How the Great Depression Fueled a Grassroots Movement to Create a New State Called Absaroka
In the 1930s, disillusioned farmers and ranchers fought to carve a 49th state out of northern Wyoming, southeastern Montana and western South Dakota
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
'We Have a Rattlesnake Problem': Wildland Firefighters in the West Must Also Face a Slithering, Venomous Foe
Nearly 100 large fires are burning in the United States right now, including some in rattlesnake territory
Six Innovative Ways Humans Have Kept Cool Throughout History
From sleeping porches to coastal escapes, these tips and tricks helped people deal with extreme heat before the advent of air-conditioning
See Inside Denver's 143-Year-Old Train Station
The transit hub, which just got an $11 million makeover, is deeply connected to the city's history
Melting Ice Reveals Body of American Mountaineer Missing for 22 Years in the Peruvian Andes
Bill Stampfl, Matthew Richardson and Steve Erskine went missing in an avalanche on Huascarán on June 24, 2002. Climbers found Stampfl's body just weeks ago
Meet the Rare, 'Beautiful' Birds That Thrive in Snow and Are at Risk Because of Climate Change
The U.S. Fish and Wildlife Service listed the Mount Rainier white-tailed ptarmigan as threatened under the Endangered Species Act this month
Leftover Ramen Broth Is Causing Problems on South Korea's Mount Halla
Visitors are dumping the salty liquid on the ground, and authorities are concerned about its impact on plants and animals
See Photos From the 1924 Mount Everest Expedition That Led to the Vanishing of Two Explorers
A century later, a new book captures the grand scale of the mountain and uncovers more about the expedition and the people at its center
The 'World's Largest Wildlife Crossing' Will Help Animals Walk Safely Over Eight Lanes of California Traffic
The 210-foot-long bridge across a busy freeway in Los Angeles County is expected to be finished in 2025
You Can Visit the World's Largest Continuous Dinosaur Trackway, Now on Protected Public Land
In the Late Jurassic, a long-necked dinosaur made a 270-degree turn while walking in present-day Colorado—and left behind a rare treat for paleontologists
The Nepali Army Is Removing Trash and Bodies From Mount Everest
They expect to haul off ten metric tons of garbage and up to five bodies from the world's tallest peak
Climbing Malawi’s Island in the Sky
A steep, lush massif—the country's highest peak at 10,000 feet—beckons adventurers
Mysterious World War II Plane Propeller Found in Scottish Peat Bog
The object likely broke off a doomed plane during a crash on the isle of Arran
A Remarkable Fresco Depicting a Scene From Greek Mythology Has Been Found in Pompeii
The vibrant painting portrays siblings Phrixus and Helle as they flee from their stepmother
Uncovering the Secrets of Colombia's Rich Fossil Deposits
Paleontologists are working hard to understand oceanic remains buried high in the Andes
Archaeologists Discover Ancient Cities Hidden in the Ecuadorean Amazon
Laser imaging has revealed an extensive network of settlements and roads that challenge historical understandings of the area
Wolverines Receive Federal Protection as a Threatened Species in the Lower 48 States
The carnivorous mammals will increasingly face habitat loss and fragmentation because of climate change, according to scientists
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