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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
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
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
US Coast Guard: Protecting us for 105 years
US Coast Guard: Protecting us for 105 years
In recognition of the modern US Coast Guard, formed on this day in 1915, we"re featuring the Cape Disappointment Lighthouse, one of many lighthouses managed by the USCG. How did Cape Disappointment get its name? A British fur trader in 1788 mistook the mouth of the Columbia River for a bay and was disappointed because his ship couldn"t pass due to the river"s shallow bar. Many ships would eventually sink in these dangerous waters, but this lighthouse has warned off countless others since it was lit in 1856, making it the first lighthouse in the Pacific Northwest. Most of the lighthouses in the US have been built and maintained by the US Coast Guard and its predecessors.Desktop Version
Fiesta at Siesta
Fiesta at Siesta
Here we are in mid-March already, the time of year when college-age revelers invade the world"s beaches, like this one on Florida"s Siesta Key. Located in Sarasota County off the state"s western shore, the island beach is a fixture on lists of America"s top beaches, a standout even in a state where soft, welcoming sands compose over half the 1,200-mile coastline.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
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
A star blows a bubble
A star blows a bubble
This giant space bubble is being blown by a massive star visible at the 10 o"clock position inside it. Already over 7 light-years across and expanding at a rate of over 4 million mph, the "bubble" is actually the shock wave created when expanding hot gas (or stellar wind) hits the cold, interstellar gas that surrounds it. The Bubble Nebula was discovered in 1787 by William Herschel. The star inside is living fast and will die young (for a star)—it will likely detonate as a supernova in only 10 to 20 million years. This image was taken in 2016 by the Hubble Space Telescope to mark the 26th anniversary of Hubble"s launch into Earth orbit by the STS-31 space shuttle crew. We"re showing it to mark the last day of World Space Week, an annual "international celebration of science and technology, and their contribution to the betterment of the human condition."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
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
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
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
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
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
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
Bridges to the past
Bridges to the past
The story of this sandstone formation in southeastern Utah"s Natural Bridges National Monument begins around 10 million years ago. That"s when tectonic shifts began slowly lifting what is now the 130,000-square-mile Colorado Plateau above the surrounding plains. In ensuing eons, the Colorado River"s many streams eroded the elevated land, threading it with deep canyons. When water broke through one canyon wall into another canyon, sometimes a natural bridge like this one remained above the breach.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
Maloja, Switzerland
Maloja, Switzerland
The word "picturesque" is an understatement when taking in today"s image of Maloja, Switzerland. This Alpine village in the canton of Grisons is surely the envy and inspiration of snow globes the world over! Located just a few miles from the Italian border, the impossibly perfect winter scenes found here have inspired painters and artists for centuries. Majola is near Lake Sils, which makes this area a recreational destination in both summer and winter. At the center of our image is the crown jewel of Maloja, the Chiesa Bianca, a church built in the 1880s by a Belgian count. Today, the once solemn space is used to stage exhibitions and concerts.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
Quebec City for Winter Carnival
Quebec City for Winter Carnival
Among all the pre-Lenten celebrations that take place around the world in February, the most famous are associated with warm-weather cities like Rio and New Orleans, where revelers party in elaborate costumes during the run-up to Ash Wednesday. It"s a different affair in Quebec City, Canada, pictured here, where participants in the Quebec Winter Carnival enjoy all things winter, from snow sculptures to sleigh races. This former frontier outpost, and little sister to Montreal, is known for its spirited embrace of the coldest, darkest season. So, it"s no surprise that its winter festival is the biggest in the Western Hemisphere. Our homepage image shows the grandiose Château Frontenac hotel, which opened in 1893, towering over the city"s historic Old Quebec neighborhood, a UNESCO World Heritage Site.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
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
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
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
Honoring the fallen
Honoring the fallen
We’re here at Arlington National Cemetery with the ‘Old Guard,’ the 3rd United States Infantry Regiment and oldest active-duty regiment in the US Army. Each year before Memorial Day, as part of a ceremony known as ‘Flags In,’ members of the Old Guard place an American flag in front of each headstone at Arlington. Within four hours, more than 228,000 flags are placed at the headstones and thousands more at various memorials.Desktop Version