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On August 31, Dale Sanders reclaimed the title of oldest person to complete the Appalachian Trail. He'd previously broken the record in 2017, at age 82.

This 91-Year-Old Man Fell 71 Times While Hiking the Appalachian Trail. He Just Became the Oldest Person to Complete the 2,190-Mile Trek

Dale Sanders finished the hike in just under a year. Nicknamed “Grey Beard,” he’s no stranger to age-defying feats of endurance

Streets affected by the catastrophic floods are now covered in mud.

What Triggered the Devastating Floods in Nepal and Tibet, and Are We Due for More in the Future? Here’s What Scientists Know So Far

Natural hazards researchers suspect that a landslide involving a glacier triggered the event, and they say more could happen because of human-caused climate change

The granite peak of Mount Fitz Roy in Patagonia rises more than 11,000 feet above sea level, attracting hikers and climbers from around the world.

Smithsonian Photo Contest Galleries

These 15 Stunning Photographs Capture All That There Is to Love About the People, Land and Culture of Argentina

See images of the South American country’s charming cities, historic homes, beautiful beaches and majestic mountains

The brown trout were likely introduced to guarantee a food source if reindeer hunts were unsuccessful, according to a new study.

Hunter-Gatherers Brought Trout to a Norwegian Mountain Lake 7,000 Years Ago, the Earliest Known Example of Humans Translocating Fish

Researchers have long known that the animals were introduced into the region’s high-altitude bodies of water, but they weren’t sure when it happened or whether humans had a hand. Analyses of recently discovered ancient fish traps provide new clues

Mount Rainier, an active volcano about 60 miles away from Seattle, has sent fast-moving mudflows known as lahars down its slopes before. Scientists just calculated a date for the most recent one.

A Massive Flow of Rock and Mud Tumbled Down Mount Rainier Centuries Ago. Scientists Pinpointed Its Date to Better Understand the Volcano’s Complex Threats

In a recent study, researchers dated a historic lahar called the Electron Mudflow to the summer of 1507, establishing a way to determine when past geologic events around the Puget Sound occurred

Andean leaf-eared mice can survive in extremely high-altitude environments with frigid temperatures and little oxygen.

Here’s How These Adorable Mice Can Live at an Extremely High Elevation Where No Other Mammal Is Known to Reside

The Andean leaf-eared mouse has adaptations that help it generate body heat efficiently in frigid, low-oxygen conditions at 22,000 feet above sea level, according to a new study

Black Canyon of the Gunnison National Park is one of Colorado's International Dark Sky Parks.

Stay Up Late and Admire the Cosmos With This New ‘Stargazing Trail’ That Links Certified Dark Sky Destinations

The initiative debuts as Colorado gears up to celebrate the 150th anniversary of its statehood

A young male bongo photographed in Maasai Mau, Kenya

Trail Camera Photos Capture Rare Antelopes in a Kenya Forest Where Conservationists Once Feared They Had Vanished

Fewer than 100 mountain bongos are thought to live in the wild, and the new discovery reveals a crucial habitat for the critically endangered creatures

By combining ecological data-gathering with philosophical contemplation, Leopold bridged the art and science of conservation.

America at 250: The Revolutionary Spark

In the Early 1900s, a Young Ecologist Shot a Wolf and Watched the Life Leave Its Eyes. That Changed His Position on Conservation

Aldo Leopold’s writing reconsidered the place of humans in the natural world and challenged people to be less conquerors of the land and more citizens of it

This arrow with a pressure-flaked arrowhead made from gray quartzite dates to the Late Stone Age or Bronze Age and was found on Norway’s ice. The pitch and the animal sinew used to fasten the arrowhead are still preserved, which is exceptionally rare.

Melting Mountain Ice Is Bringing Ancient Secrets to the Surface. Archaeologists Are Racing to Find the Artifacts Before They’re Lost to Time

In Norway’s highest mountains, experts are scouring perilous terrain for pieces of the past, long stored in mint condition in ice patches. As temperatures rise across the world, glacial archaeologists must find the emerging artifacts before they degrade forever

The spray from the cascade of Bridalveil Falls captures sunlight to create a rainbow of colors.

Smithsonian Photo Contest Galleries

These 15 Breathtaking Photos of Yosemite National Park Will Have You Planning Your Next Vacation to the Great Outdoors

The park’s picturesque peaks, wonderful waterfalls and towering trees aren’t just photo opportunities; they’re visual poetry. And they’re just some of the reasons to love Yosemite

Two Alpine ibexes butt heads, slamming their horns together in a powerful battle that can be heard from far away. They wandered up the slope together afterward.

See 15 Stunning Images That Won the German Society for Nature Photography’s Annual Contest

From a lunging frog to the majestic movements of penguins, the honored photographs capture the wonder of wildlife and beauty of natural landscapes

Archaeologists think the green minerals found in the cave might be malachite, which is treated and processed to make copper.

New Research

Mysterious Green Rocks Discovered in a Remote Cave in Spain Might Be Signs of Prehistoric People Working With Copper

The find challenges assumptions that people in the region thousands of years ago did not spend much time at high altitudes

Herders have used cowbells as tracking devices for livestock for thousands of years, a practice that continues today.

See 15 Sensational Scenes of Switzerland, Europe’s Alpine Wonderland That’s Beautiful No Matter the Season

These dramatic images from the Smithsonian Magazine Photo Contest capture the splendor of the European nation home to castles, alpine huts, snow-capped mountains and much more

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Hear From a Wildlife Photographer’s Dramatic Glimpse Into the Dwindling World of the Cascade Red Fox

Gretchen Kay Stuart has chronicled the work of a small team of biologists who are trying to keep a little known and breathtakingly beautiful endangered species from disappearing

The escalator opened to passengers on February 17, 2026.

The World’s Longest Outdoor Escalator Just Opened in China. Riding the 3,000-Foot-Long System to the Top Takes More Than 20 Minutes

The new “Goddess” escalator in Wushan County features 21 individual escalators and 8 elevators. The modular design carries riders up 800 feet in elevation

A red-roofed residence is nestled in the rocks at the feet of the Cadini di Misurina.

Experience the Grandeur of the Italian Alps With These 15 Majestic Photographs

As the Winter Olympics come to their end in Milan and Cortina, enjoy these sweeping landscapes before booking your next trip to Europe

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The Tragedy of the Alps’ Disappearing Glaciers for Those Who Live, Visit and Ski There

Warming temperatures are wreaking havoc at elevation, upending the Winter Olympics and the tourism industry and imperiling communities

After capturing the 77-pound male, wildlife officials said they planned to re-collar and release the creature into the wild.

Rare Mountain Lion Standoff in San Francisco Ends Peacefully After a 30-Hour Search

Wildlife officials successfully captured the young male, known as 157M, after he wandered into the northern Pacific Heights neighborhood

The Swiss Alpine Club (SAC) owns about half of Switzerland’s 320 huts, including the Almageller Hut on the southern side of Weissmies Mountain above the village of Saas-Almagell.

The Race Is On to Save the Alps’ Famous Huts and Trails as Melting Permafrost Threatens to Destroy Them

Hiking will always be a part of life in the Alps, but climate change has made navigating high-alpine routes more complicated

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