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Sailing on thick ice
Sailing on thick ice
New York"s Hudson River, winter of 2014: Temperatures were so cold for so long that sailors were able to take their antique wooden ice yachts out for a sail on this 20-mile stretch of thick ice. It was a rare sight for the area. Global warming meant that the Hudson River hadn"t frozen thick enough for safe iceboating in years.Desktop Version
Happy Astronomy Day!
Happy Astronomy Day!
No, that"s not a downpour of lightsabers—but it"s no typical night sky either. Stargazing here at Paranal Observatory, on a mountaintop in Chile"s desolate Atacama Desert, you"ll get one of the clearest possible naked-eye views of the southern skies. This "lightsaber" effect comes from the photo"s long exposure: What we"re seeing is these stars" paths as they track across the night sky due to our planet"s rotation. The dazzling colors indicate temperature, from chilly red (5,000-ish degrees Fahrenheit) to balmy blue (temps in the tens of thousands).Desktop Version
A bull, some flowers, and a stratovolcano
A bull, some flowers, and a stratovolcano
It"s grape-harvesting time on Pico, a centuries-old tradition that kicks off in early September. Pico is one of nine islands comprising an autonomous region of Portugal called the Azores archipelago. The islands themselves are the peaks of vast volcanic mountains that rise high above the North Atlantic Ocean.Desktop Version
Of moles and liquid nitrogen
Of moles and liquid nitrogen
What a coincidence! Three days into National Chemistry Week, we dive further into STEM education to celebrate Mole Day. We’re not toasting the burrowing animal, but the unit of measurement (mole) used primarily in chemistry and molecular science studies. We don’t know how many moles of liquid nitrogen are in this photo, but we do like the dynamic look of the super-cooled element, which in liquid form can resemble boiling water. We hope this photo doesn’t depict liquid nitrogen after somebody in the lab dropped their keys into the vat. At minus 320 degrees Fahrenheit, liquid nitrogen tends to flash-freeze anything immersed in it.Desktop Version
Arctic fox in Norway
Arctic fox in Norway
We"re visiting Norway"s Dovrefjell–Sunndalsfjella National Park, where this small but mighty Arctic fox is undergoing changes to prepare for the cold, Nordic winter. While animals have many ways to adapt to winter weather, such as migrating, hibernating, and growing thick fur, the Arctic fox does none of these. Instead, its coat transitions from brown and gray to a snowy white every autumn. The fox"s pelt acts as camouflage, allowing it to blend in among the rocks and tundra for half of the year and, after turning white, hide in the snow and ice the other half.Desktop Version
Dog days of summer
Dog days of summer
The weather is warmer, and the days are longer, which can only mean one thing—the dog days of summer have arrived. These Cape foxes are helping us celebrate the dog days with their frolicking in the Kalahari Desert. They may not be the kind of "dogs" you typically think of, but Cape foxes are from the same family (Canidae) as the pooches you know and love. Partly to escape the heat in the desert scrubland it prefers, the Cape fox is most active just before dawn or after dusk, commonly spotted during the early mornings and early evenings.Desktop Version
Salmon migration in full swing
Salmon migration in full swing
If you live in the Pacific Northwest, you may get a chance to view migrating salmon this fall. For the sockeye salmon shown here, the epic journey takes them from the waters of the Pacific Ocean back to the freshwater lakes and streams where they were born. There they’ll spawn, their bodies turning from a silvery blue to crimson and changing shape in the process. This isn’t always an easy journey. Dams and other human interventions have affected salmon runs, and West Coast salmon numbers have been in decline. We’re fans of groups like Long Live the Kings, a Pacific Northwest nonprofit that’s helping rebuild salmon populations and protect their habitat—for the long run.Desktop Version
Antarctica Day
Antarctica Day
At just over 600 miles from the tip of South America, Cuverville Island is closer to civilization than most of Antarctica. As such, this small isle off the northward-jutting Antarctic Peninsula is a hotspot for tourists to catch some cool scenery (while freezing their butts off, of course). Visitors can also chill on the rocky beach with the locals: a glut of gentoo penguins whose rookery here is the largest along the peninsula.Desktop Version
The long and wiggling path
The long and wiggling path
In 1926, Walter Ruesch, the first superintendent of Zion National Park in Utah, oversaw the construction of this section of the Angels Landing Trail, one of the park"s most ambitious trails. Although he had no previous engineering experience, Ruesch planned the steep 21-switchback path out of Refrigerator Canyon up to Angels Landing. The section of the trail, now affectionately called Walter’s Wiggles, was first built to enable horses" access to Cabin Spring. One of the most difficult and dangerous sections of the Angels Landing Trail, Walter"s Wiggles was resurfaced in 1985 in a project that required 258 helicopter flights to haul in concrete for the job.Desktop Version
Longer days mean warmer sand
Longer days mean warmer sand
Today we’re hitting the beach in Costa Rica’s Cahuita National Park because, well, just take a look at this place. If the sun gets too intense, we might take a stroll into the park’s lowland wet forest where, if we’re lucky, we’ll see sloths, toucans, and howler and capuchin monkeys; or maybe we’ll encounter armadillos, coatis, iguanas, and tamanduas (anteaters). After that, we’ll take a dip in the Caribbean waters offshore to marvel at coral reefs, sea turtles, and hundreds of species of fish.Desktop Version
Spring equinox
Spring equinox
Every year around March 20, the sun aligns with the Earth"s equator, and day and night are about equal in length. In the Northern Hemisphere, this is called the spring or vernal equinox, and it marks the astronomical exit of winter into the brighter, warmer springtime. From now on, we can enjoy days that are longer than nights. And a sharp eye might spot a flowering crocus, like the ones in today"s image, among the first flowers to bloom every year.Desktop Version
Lighting it up for Vivid Sydney
Lighting it up for Vivid Sydney
It’s winter in Australia, and the residents of Sydney fend off the winter gloom with a citywide festival. The wild light shows of Vivid Sydney encourage people to explore the city and see it in a new light. (Sorry. That had to happen.) Our photo shows the interior of "PJ the Port Jackson Shark," a light sculpture at the Taronga Zoo. It allows visitors to walk into the mouth of the ‘shark.’Desktop Version
Climb a tree for wild animals and plants
Climb a tree for wild animals and plants
Today is World Wildlife Day, the annual United Nations celebration of the incredible diversity of our planet"s wild animals and plants. The theme of this year"s WWD is "Forests and Livelihoods: Sustaining People and Planet." Through a series of virtual events, and a panel at UN headquarters, UN representatives and partner wildlife groups will examine the links between the state of our planet"s forests and woodlands and efforts to preserve the millions of livelihoods that directly depend on them. A particular emphasis will be placed on the role of Indigenous peoples who still live and work in forested areas, how they"ve successfully managed their forest ecosystems for centuries, and what that can teach us about sustainability.Desktop Version
American bison
American bison
For an American bison, winter is the season to slow down, plump up, and let your hair grow out. Relatable, sure, but these massive mammals get there without the aid of beer, chips, and a couch.Desktop Version
Three cheers for polar bears!
Three cheers for polar bears!
February 27 is International Polar Bear Day, an observance created to bring attention to the important role these alpha predators play in the Arctic ecosystem. Though polar bears aren"t endangered—their current conservation status is "vulnerable"—these magnificent beasts have become a sort of mascot for the race to slow the melting of Arctic sea ice. The Arctic ice is crucial to the bears" survival, as they hunt the ringed seals that bob up through holes in the ice. As Arctic ice decreases, the polar bears" hunting ground does too.Desktop Version
Sky island views
Sky island views
Though it"s December, it isn"t cold and snowy everywhere in North America. Here, near Tucson, Arizona, the Sonoran Desert stays warm year-round. In this photo, we"re looking at a "sky island"—an isolated, high-elevation woodland surrounded by radically different lowland environments. In this case, the desert land at the base of the mountain is peppered with saguaros—a stately cactus recognized for its long arms. The snow-capped Santa Catalina Mountains in the distance are part of the Madrean Sky Islands and are home to Mount Lemmon Ski Valley, which is the southernmost ski destination in the US. The ski area covers the slopes of Mount Lemmon, which reaches an elevation of about 9,100 feet at the summit and can receive around 180 inches of snow annually.Desktop Version
Hey, don t you guys have somewhere to be?
Hey, don t you guys have somewhere to be?
Known in North America as caribou, reindeer are built to live in freezing Arctic regions like northern Norway, where this herd was photographed under the transfixing swirl of the aurora borealis, or northern lights. Reindeer have evolved unique features that help them thrive in these harsh environments. Their noses are adapted to warm the air they breathe before it enters their lungs, which helps maintain a steady body temperature even in the coldest of weather. And most of their bodies, including their hooves, are covered with thick, dense fur to keep them well insulated. In fact, they are more likely to overheat then freeze—so when they"re flying through the starry skies tonight, they"ll be feeling snugger than Santa Claus in his red velvet suit.Desktop Version
Wedded Rocks, Japan
Wedded Rocks, Japan
Just off the shore of Futami, in the southern-central region of Japan"s main island, Honshu, two rocks represent a sacred union between a divine couple. Known collectively as Meoto Iwa (Wedded Rocks), these sea stacks represent Izanagi and Izanami, the married brother-and-sister deities who created the islands of Japan and its gods in Japanese mythology. The large rock on the left is said to be the husband, Izanagi, and at its peak is a small torii, a symbolic gateway marking the entrance to a Shinto shrine. The smaller rock represents his wife, Izanami.Desktop Version
Paper lanterns on the longest night
Paper lanterns on the longest night
For the winter solstice today, we’re in Santa Fe, where residents celebrate the holidays with lovely paper lanterns known as farolitos, or luminarias. The annual Farolito Walk takes place each Christmas Eve in the city’s Canyon Road arts district, but the farolitos are often on display much earlier, lighting the way among the pueblo-style architecture that this region is known for. Winter solstice marks both the official start of winter, and the longest night of the year—meaning these paper lanterns will be put to good use tonight.Desktop Version
It s International Jazz Day
It s International Jazz Day
We’re joining the rest of the world in celebrating International Jazz Day with this 1959 image of the legendary trumpeter Louis Armstrong. Jazz music has its roots in Armstrong’s hometown of New Orleans, but it quickly spread throughout the United States before developing an international appeal and influence. April 30 is designated by the United Nations Educational, Scientific and Cultural Organization (UNESCO) as International Jazz Day to highlight the music and its role in cultures around the world.Desktop Version
Illuminations on the Gulf of Poets
Illuminations on the Gulf of Poets
Each year on Aug 17, the northern Italian fishing village of Porto Venere is illuminated with more than 2,000 torches for the festival of the White Madonna, a tribute to the town’s patron saint. The lights extend onto this rocky spur, which juts into the Gulf of La Spezia, also known as the Gulf of Poets. With views like this, we can easily see how it inspired poets and artists throughout history–including Lord Byron, who is said to have swum across this body of water to visit fellow poet Percy Bysshe Shelley.Desktop Version
World Frog Day
World Frog Day
World Frog Day is celebrated every year on March 20, a chance to consider the world"s most famous tailless amphibian. The star of fairy tales, cartoons, films, and TV shows, the charismatic and clearly photogenic frog accounts for almost all amphibian species. Frogs have been around for more than 200 million years, and although they live in both warm and cold places, most reside in tropical rainforests.Desktop Version
National Love a Tree Day
National Love a Tree Day
The owner of this land in Wales could have chopped down the oak tree to make room for more crops, but we like to think he was too fond of the tree. And what’s not to like? Not only do trees provide beautiful scenery, they also offer animal habitat, cooling shade, and jobs. What’s more, they combat climate changes by absorbing CO2 from the atmosphere. Every day should be National Love a Tree Day, in our book.Desktop Version
Wildebeest on the move
Wildebeest on the move
Each year, as many as 1.5 million blue wildebeest move through the Serengeti region of eastern Africa, traveling in a roughly 800-mile loop through Tanzania and Kenya as they chase lush, green grass and fresh water. When resources are depleted in one area, the animals move to another. Late summer often finds them in Kenya"s Maasai Mara National Reserve, shown on today"s homepage. The speedy wildebeest (the species can run up to 50 mph!) is not alone in its journey; hundreds of thousands of zebras, gazelles, and elands accompany the herd. The great number of animals makes this phenomenon one of the largest land migrations on Earth, often called the World Cup of Wildlife.Desktop Version
Atrani, Amalfi Coast, Italy
Atrani, Amalfi Coast, Italy
With its red clay roofs and pastel buildings Atrani shines above a sparkling sea on the Amalfi Coast in southwest Italy. Just 800 people get to call Atrani home, the rest of us can only hope to visit one of the country"s smallest towns, walking its narrow roads as we admire the small houses perched above the beach. The traditional fishing village is part of the Costiera Amalfitana UNESCO World Heritage Site, and it has kept its traditional characteristics alive. It is a perfect Mediterranean getaway to soak up the sun and enjoy local seafood at a waterfront cafe.Desktop Version