Many videos and photos shares on social media showed areas dusted with up to an inch of snow and trees slicked with thick ice. Pictured: Sao Joaquim Brazil

Rare Snowfall Blankets Cities Across Brazil

Some parts of the country are seeing snow for the first time in decades, and its threatening crop production

The snow’s red hue may also create a ‘snowball’ effect that harms ecosystems because red-tinged snow does not reflect as effectively as white snow and will melt faster.

What 'Glacier Blood' on the French Alps Tells Scientists About Climate Change at High Elevations

The red hue is produced by snow algae blooms. The color most likely shields the algae from damaging ultraviolet rays

When conditions are right, Horsetail Falls transforms and emits an enchanting ember glow reminiscent of lava or falling fire.

Yosemite's 'Firefall' Natural Wonder Illuminates El Capitan Through the End of February

Under the right conditions, viewers will have a short window of 10 minutes each evening to experience the glowing falls

By Monday evening, nearly 2,000 cold-stunned turtles were rescued from the Lower Laguna Madre Lagoon along the Texas Coast, where endangered green sea turtles call home.

Volunteers Scramble to Save Thousands of Sea Turtles Following Polar Vortex in Texas

As of last Wednesday, at least 3,500 sea turtles have been rescued from freezing waters in the midst record-breaking winter storm

Winter Storm Uri brought below-freezing temperatures and snow to 26 states this week, causing millions of people to lose electricity

How Winter Storm Uri Impacted the United States

The Arctic blast has swept across the Lower 48, bringing record cold temperatures and interruptions to electricity and water services

Giant panda cub Xiao Qi Ji experiences snow for the first time just beyond his indoor exhibit on Sunday. Though he did not venture further, his parents Mei Xiang and Tian Tian played around outside.

Watch Giant Pandas and Other Zoo Animals Frolic in the Snow

The weekend's winter snowfall in Washington, D.C. delighted the giant pandas, red pandas, Andean bears and other critters at the National Zoo

Rescuers found the Dyatlov group's abandoned tent on February 26, 1959.

New Research

Have Scientists Finally Unraveled the 60-Year Mystery Surrounding Nine Russian Hikers' Deaths?

New research identifies an unusual avalanche as the culprit behind the 1959 Dyatlov Pass Incident

"Yellowknife Flurry," a photograph by Nathan Myhrvold, captures the intricate structure of snowflakes.

These Are the Highest Resolution Photos Ever Taken of Snowflakes

Photographer and scientist Nathan Myhrvold has developed a camera that captures snowflakes at a microscopic level never seen before

Projects that harness the public to make observations and report data about the health of our environment are growing. Anyone can join—no PhDs needed.

Innovation for Good

Twenty-Four Ways to Turn Outdoor Passions Into Citizen Science

Heading into the new year, consider collecting scientific data while skiing, hiking, surfing, biking and partaking in other adventures

The original photos from late 1800s by famous snowflake photographer Wilson “Snowflake” Bentley, are stored in the Smithsonian Archives. His pictures were instrumental in helping scientists examine snow’s crystalline properties.

Smithsonian Voices

Why Scientists Find Snowflakes Cool

Mineralogists study snowflakes to learn more about how water in its solid phase behaves

So-called 'watermelon snow' sounds better than it looks and tastes; do not eat pink snow.

This 'Blood-Red' Snow Is Taking Over Parts of Antarctica

After a month of record-breaking temperatures, a kind of snow algae that turns ruby-hued in warm temperatures thrives

The high-quality ice comes straight from a pond located just a stone’s throw away from Ice Art Park, just west of downtown Fairbanks, where the annual competition is held.


The Painstaking Art of Ice Carving

It might be cold and labor intensive, but that doesn’t stop artists from testing their ice sculpting skills at the World Ice Art Championships in Fairbanks

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Record-Breaking Storm Dumps Four Feet of Snow on Parts of Montana

The September storm broke snowfall and temperature records across several states

Coal-colored snow has blanketed Siberia's Kuzbass region this winter, provoking local outrage and health concerns

In Siberia, Toxic Black Snow Reveals the Toll of Coal Mining

Authorities in one town reportedly attempted to cover up coal-polluted snow with white paint

‘Frost Quakes’ May Have Caused Mysterious Booms in Chicago

The event happens when sudden temperature drops cause underground water to freeze and expand

Chicago on a cold and windy day

What Is Wind Chill, and How Does It Affect the Human Body?

While wind will not change the ambient temperature of the air, it will change the temperature of your body

Ice and wind turn turn Japan's Maries’ fir trees into frozen figures.

Arboreal 'Snow Monsters' Overrun Northern Japan Every Winter

Ice and wind transform these high altitude fir trees of into real-life White Walkers

A chilly squirrel.

Do Animals Hate the Bitter Cold of Winter?

Animals can certainly feel the cold, and many species have developed unique ways of dealing with it

Glowing ice sculptures span eight million square feet of Harbin, a city in China's northeastern Heilongjiang province.

Virtual Travel

Step Inside Winter's Most Spectacular Wonderland at the Harbin Ice and Snow Festival in Northeast China

Visitors brave -40 degree temperatures to climb glistening ice castles and frozen replicas of iconic buildings

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Adventurer Completes First Solo, Human-Powered Trek Across Antarctica

It took Colin O'Brady 53 days to drag a sled 921 miles from the Ronne to the Ross Ice Shelf