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King of the dinosaurs
King of the dinosaurs
No other dinosaur has quite the notoriety of the Tyrannosaurus rex. The species gained widespread popularity in 1905, when a New York Times article hailed it as "the king of all kings in the domain of animal life," and the "absolute warlord of the earth." The so-called "tyrant lizard" has been a star ever since, regularly appearing in film, TV, literature, and—for some of us—nightmares.Desktop Version
It s Slovenia s Independence and Unity Day
It s Slovenia s Independence and Unity Day
Today we"re featuring an image of the Slovenian village of Praprotno and its Church of St. Thomas for the country"s Independence and Unity Day. On December 26, 1990, the results of a Slovenian vote on the country"s independence were announced. More than 95 percent of voters answered "Yes" to the question: Should the Republic of Slovenia become an independent and sovereign state?Desktop Version
1, 1, 2, 3: It s Fibonacci Day!
1, 1, 2, 3: It s Fibonacci Day!
Today"s date, November 23, can be represented as 11/23, or 1, 1, 2, 3—the beginning of the Fibonacci sequence of numbers. Likewise, as the leaves on the Queen Victoria agave in today"s image spiral out from the center, they also express the Fibonacci sequence. This unique sequence of numbers was introduced to Europe in 1202 by the Italian mathematician Leonardo of Pisa (posthumously named Fibonacci) in his revolutionary work, the "Liber Abaci." The book begins by describing the Hindu-Arabic numeral system or "Modus Indorum’—0 1 2 3 4 5 6 7 8 9—and shows how its application could simplify trade and make calculations faster and easier (most of Europe at this time used Roman numerals).Desktop Version
Not your average sandcastle
Not your average sandcastle
Memorial Day is the unofficial start of summer, so of course we’re heading to the beach—the city beaches of Valencia, Spain. Valencia is famous for its beautiful, golden sand beaches, where people build incredible sand sculptures, like this one on Malvarrosa Beach. An elaborate sand sculpture can take over a week and multiple people to build. In fact, the world’s tallest sandcastle reached over 50 feet into the sky. But if you’ve got the time, sand, and water, you too can build a cool sandcastle.Desktop Version
Happy trees = Clean air
Happy trees = Clean air
We’re gazing up at the tree canopy in the Tambopata National Reserve of the Peruvian Amazon. The Amazon rainforest covers 60 percent of Peru’s total landmass, stretching over 37,000 square miles.Desktop Version
Dressed for winter fun
Dressed for winter fun
Native to North America, mountain goats spend much of the year scaling peaks from south-central Alaska down to the northern Rockies. They tend to live at high altitudes, often above 13,000 feet, where their sure-footed climbing ability allows them to clamber up extraordinarily steep, rocky slopes. In the winter, they"ll migrate down to slightly lower elevations to seek shelter in subalpine forests with south-facing rocky ledges, where the sun and relentless winds keep ice to a minimum. Here, they forage for lichen, mosses, grasses, and other greens. Their woolly, two-layered coats keep them toasty as temperatures dip, which is probably why even in the chill of western Montana this young mountain goat—or kid—appears to be having a ball. Enjoying winter is all about how you dress.Desktop Version
It s Independence Day in Mexico
It s Independence Day in Mexico
In honor of today"s Independence Day holiday in Mexico, our homepage image comes from the state of Guanajuato—where the country"s battle for independence first began. The conflict started with the "Cry of Dolores," an event on September 16, 1810, when priest Miguel Hidalgo y Costilla rang the church bell in the nearby town of Dolores and called for a revolt to free Mexico from Spanish control. His call to arms triggered the formation of an insurgency that marched onward to San Miguel and then to the city of Guanajuato (shown in this image). The ensuing conflict spanned more than a decade, culminating with Mexico finally breaking free from Spanish rule in 1821.Desktop Version
Reflecting on fall
Reflecting on fall
Some of the best things about fall in many parts of the country are the amazing colorful displays across the landscape. While the trees here in Beaver Lake Nature Center, near Syracuse, New York, are already bare, the autumn ferns cast a radiant reflection on the water. This 661-acre natural area contains a 200-acre glacial lake that draws migrating Canada geese to its shores. Visitors may also see more than 200 other species of birds and over 800 varieties of plants. The nature center is a destination for cross-country skiing in the winter, while the summer months are popular for kayaking and canoeing.Desktop Version
In the Supertree Grove
In the Supertree Grove
Every August 9, the streets of Singapore fill with revelers celebrating the anniversary of the city-state"s independence from Malaysia in 1965. Like patriotic events in other nations, Singapore"s National Day features parades, speeches from political leaders, and fireworks. This year also marks the 200th anniversary of the first British colonial outpost in what would become modern-day Singapore.Desktop Version
It’s Weihnachtsmarkt time!
It’s Weihnachtsmarkt time!
The streets of this market square are all decked out in a tradition born nearly 700 years ago. Weihnachtsmarkte or Christkindlmarkte (Christmas markets, if you prefer less of a mouthful), take place around the world, but they originated in Germany as a celebratory way to observe Advent, the Christian season leading up to Christmas Eve. These markets are generally open-air affairs where everything is decorated, including the trees (called Tannenbaums in German if they"re firs). People shop from local artisans who sell their handmade wares in small wooden chalets. Then it"s off to eat traditional foods—roasted almonds, pastries, and biscuits—and sip on warm mulled wine.Desktop Version
Penguin Awareness Day
Penguin Awareness Day
We"re celebrating Penguin Awareness Day in the Falkland Islands, taking a stroll with some king penguins. Kings are the second-largest penguin species, only outranked in stature by their emperor penguin cousins. And while the kings" tuxedo coloring gives them a dash of the debonair, it also provides an important and more practical purpose: camouflage. When the birds dive deep into the ocean looking for food, their black feathers disguise the birds from predators above, while their white undersides do the reverse. Kings are legendary for their diving prowess—in their quest for tasty squid and lanternfish, they can dive to depths of 300 feet, and some have even been spotted nearly 1,000 feet beneath the surface. Underwater, these flightless birds are the epitome of grace. On land, however, they are not so graceful, and waddle or "toboggan" on their bellies to get around.Desktop Version
Combating extinction with citizen science
Combating extinction with citizen science
Just as every human has a unique set of fingerprints, each zebra has a subtly different pattern of stripes–and that trait is proving valuable in a new conservation effort. A nonprofit conservation project called Wildbook utilizes crowdsourced photos to identify and track individual animals that belong to threatened species. But it doesn’t just identify zebras. The effort extends to whale sharks, manta rays, giraffes and more. This new technology provides a non-invasive way to study the species over time. We’re fans of the project, especially since it helps friends like our Grévy"s zebra, which is endangered.Desktop Version
It’s Opening Day for Major League Baseball
It’s Opening Day for Major League Baseball
Our photo today shows a late September home game for the Oakland Athletics, going up against the Texas Rangers near the end of the 2017 Major League Baseball season. A new Major League season begins today, and this year marks the earliest Opening Day for MLB in the history of the organization. To top that, every team in the league is scheduled to play today—something that hasn’t happened on Opening Day since 1968. Which team do you root for?Desktop Version
Seventeen arches at sunset
Seventeen arches at sunset
When it"s winter solstice time in the Northern Hemisphere, the setting sun shines under the Seventeen-Arch Bridge at the Summer Palace in Beijing, causing this romantic glow. In the 18th century, during the Qing dynasty of China, the Qianlong Emperor ordered the construction of this collection of gardens, lakes, and various structures, including temples and small palaces. These days, it"s one of Beijing"s premier attractions and sure to be crowded this time of year, with visitors headed to the bridge in time for sunset.Desktop Version
Sutherland Falls in Fiordland National Park
Sutherland Falls in Fiordland National Park
Sutherland Falls spills over the side of Lake Quill in the jagged, glacier-carved landscape of Fiordland National Park on New Zealand’s South Island. For years, it was believed to be the tallest waterfall in the world, thanks in part to a rough estimate by Scottish explorer Donald Sutherland, the first European to see the falls. Later, more scientific surveys proved this estimate to be significantly inflated, but Sutherland Falls is still 1,900 feet tall, which is plenty high in our book.Desktop Version
Honoring the first American woman in space
Honoring the first American woman in space
This far-out image of the Sahara Desert was photographed from space via the Sally Ride EarthKAM, a camera aboard the International Space Station. The EarthKAM is programmed remotely by middle school students as part of an educational program established by Sally Ride, the first American woman to travel to space. Ride’s first trip to space was in 1983. On May 26, her birthday, we remember her legacy.Desktop Version
In the Himalayas for International Mountain Day
In the Himalayas for International Mountain Day
The steep, angular summit of Ama Dablam rises behind Tengboche Monastery, a Tibetan Buddhist site resting at over 12,000 feet. Ama Dablam means "mother"s necklace": Its swooping shape is thought to evoke a mother cradling a child, and a dangling glacier on its southwest face is believed to resemble the religious pendants many Sherpa women wear. Situated in the nearby Khumbu Valley, Tengboche Monastery is a stop on the Sacred Sites Trail Project, a self-guided trek through holy places that dot Nepal"s Sagarmatha National Park.Desktop Version
How Quảng Ngãi got its grove back
How Quảng Ngãi got its grove back
Could these humble rows of trees prevent a natural disaster? The Vietnamese government hopes so. Mangrove forests like Bàu Cá Cái in coastal Vietnam"s Quảng Ngãi province are an important shield against destructive typhoons that rock the coast each year. Unfortunately, mangrove trees have been depleted over the years by population growth, climate change, and increased use of waters for fish farming. Plantings at Bàu Cá Cái—outlined by bamboo frames to create the neat patterns seen here—have been part of a major initiative to regenerate nearly 10,000 acres of mangrove forest around the country.Desktop Version
Who s wearing such cute hats?
Who s wearing such cute hats?
The stone figures lining the steps in today"s photo are among 500 rakan statues on the small island of Miyajima in Japan. The colorful knitted caps they"re wearing are offerings from people visiting the island, a tradition followed in other areas of Japan as well. Some believe this gift-giving is based on a children"s folk story of an elderly hatmaker who was unable to make it to market on a snowy day, so he placed his collection of hats on rakan statues to keep their bare heads dry. Later, the statues showed their appreciation by delivering gifts to the hatmaker and his wife so they could celebrate the new year properly. The statues in this photo were individually carved sometime between the 1780s to the 1820s, and no two are alike. They line the path at the base of Mount Misen that leads to the Daisho-in Temple, one of the many temples and shrines on the island.Desktop Version
Ringing in the new year at Teotihuacan
Ringing in the new year at Teotihuacan
If the Aztecs had hot air balloons, they may well have greeted the new year like this—floating above the massive Pyramid of the Sun at sunrise today, the first day of the year according to the Aztec calendar. Also known as Yancuic Xihuitl, the Aztec New Year is still celebrated by some Indigenous Nahua communities here in central Mexico with songs, dances, and the flames of "ocote" (pitch pine) candles. Dancers wear colorful traditional costumes topped by quetzal feather headdresses, and celebrants greet the new year by making loud noises with seashells, just as Aztecs did centuries ago. It"s one of the many expressions of pre-Columbian tradition that managed to survive the Spanish conquest and modern erosion of Indigenous customs.Desktop Version
Exploring the wilder side of New York
Exploring the wilder side of New York
New York State isn’t all skyscrapers and teeming crowds. The Empire State is home to a diverse geography, including some wild places that were around back on July 26, 1788, when New York officially joined the Union. In honor of New York’s statehood day, we’re at Letchworth State Park, a wilderness near Rochester that follows the Genesee River some 17 miles through a deep gorge that’s known as the "Grand Canyon of the East."Desktop Version
An emerald isle of the Emerald Isle
An emerald isle of the Emerald Isle
If you were to find yourself wandering across the tiny island of Inisheer on March 17, you"d almost certainly hear someone greet you with a hearty "Lá fhéile Pádraig sona dhuit!" That"s because nearly all the island"s 260 residents would want to wish you a happy Saint Patrick"s Day in their native Irish tongue. The smallest of the three Aran Islands that are strung across the mouth of Galway Bay in western Ireland, Inisheer has been inhabited from prehistory—artifacts from as early as the Bronze Age have been found scattered around its 1,400 acres. The tiny drystone wall subdivisions of the fields are a result of a long tradition of splitting family farms between all the children. After a few generations, farms were reduced to the garden-size patches you can see here.Desktop Version
Welcome to the Hoh
Welcome to the Hoh
Don"t let this sunny picture fool you. The Hoh, a temperate rainforest on the western side of Olympic National Park in Washington state, sees between 12 and 14 feet of rain each year, making it one of the wettest places in the continental US. But all that moisture creates a lush, even mystical environment. The forest features a mix of conifers and deciduous trees draped heavily with moss, like the arching big leaf maple in our homepage image. A stroll through the forest will also reveal the massive Sitka spruce and western hemlock trees that may reach more than 300 feet up into the dense canopy. Below, the woods teem with ferns, lichen, and other vegetation. It"s an enchanted forest right out of a fairy tale.Desktop Version
Lick Observatory
Lick Observatory
Shrouded in snow on the summit of Mount Hamilton, in the Diablo Range just east of San Jose, California, lies the world"s first permanently occupied mountaintop observatory. Constructed between 1876 and 1887, the Lick Observatory has been the site of significant discoveries, including several of Jupiter"s moons and other planetary systems. It"s named for American real-estate entrepreneur James Lick, who set aside $700,000 for the University of California to build a facility that would be home to a "telescope superior to and more powerful than any telescope yet made."Desktop Version
The birthplace of Cinco de Mayo
The birthplace of Cinco de Mayo
The church we see on the grassy hill was built after Hernan Cortez and his Spanish army conquered Cholula one October day in 1519. The Spanish ravaged the Aztec holy city that day, murdering 10% of its population and burning down the many pyramids that dotted the area. But just underneath this church, buried for centuries, lay an ancient secret never discovered by the Spanish. It"s the largest pyramid in the world, the Great Pyramid of Cholula, so large its enormous base would span several Olympic-sized swimming pools.Desktop Version