Bing wallpaper for mobile

Hottest Latest
Computer Science EDU Week
Computer Science EDU Week
In the decidedly pre-digital 19th century, English polymath Charles Babbage developed his design for an Analytical Engine, a machine that incorporates many of the functional ideas of modern computers. The diagram in our photo today shows the plans for the inner workings of Babbage"s mechanical computer. Construction was difficult and expensive, given the precision required for the crafted metal parts, so Babbage tinkered on his own but died before he saw his vision realized. Engineers have since built working models of Babbage"s machine.Desktop Version
What s better than a smile?
What s better than a smile?
How about two smiles? Some would say there"s plenty to be glum about these days, but to help you grin and bear it, we"re sharing this pic of a pair of hyacinth macaws in Brazil"s Pantanal region as they say "cheese" for the camera.Desktop Version
Feel the spray in Monterey
Feel the spray in Monterey
Fantasizing about warm, sandy beaches with gently lapping waves? Well, we decided you could use a shake-up—so here we are on California"s Monterey Peninsula for a glimpse at the ocean"s raw, unadulterated power. Asilomar State Beach"s mile-long coastline trail offers views like this one of seas crashing on jagged shores. Below the frothy surface swim innumerable ocean organisms protected by the massive Monterey Bay National Marine Sanctuary, the largest marine preserve in the contiguous United States. Behind us, a rich dune habitat supporting its own delicate flora and fauna can be explored via a boardwalk trail.Desktop Version
Pearl of the Adriatic
Pearl of the Adriatic
Jutting out into the sparkling Adriatic Sea, the medieval city of Dubrovnik in southern Croatia displays its centuries-old charm. Here at the heart of the city is the Old Town, paved with limestone and surrounded by medieval walls that encircle its historic core. Visitors can walk along the walls, which stretch over 6,000 feet and were built to defend Dubrovnik from pirates and other unwelcome guests during the Middle Ages. Dotted by fortifications, bastions, and towers, the walls offer breathtaking views of the brilliant blue waters of the Adriatic on one side, and the Old Town"s distinctive terra-cotta roofs on the other.Desktop Version
Happy World Meteorological Day
Happy World Meteorological Day
On this World Meteorological Day, celebrated each year on March 23, we climb far above the Earth for a view of the southern Peruvian coast courtesy of the Landsat 8 satellite. Below the clouds, at the bottom of those canyons, are the Yauca and Acarí Rivers, which drain into the Pacific. As any good meteorologist taking a break from today’s celebrations will tell you, warm air from the equator forms a layer over the cool coastal air here, pushing the clouds into the deep river canyons and covering the Pacific Ocean shore.Desktop Version
Is that a face in the sand?
Is that a face in the sand?
Though the coastal Namib Desert begins in the southwest of Angola, and creeps into South Africa, the largest stretch of the Namib makes up the coastline of Namibia. Parts of the Namib rise in steep elevation, while the northern portion is often shrouded in thick fog rolling off the Atlantic. The fog over the region called the Skeleton Coast is responsible for numerous shipwrecks, but the moisture it brings into the harsh desert landscape is crucial to the flora and fauna that thrive here.Desktop Version
Does this shark have an Irish accent?
Does this shark have an Irish accent?
Our Shark Awareness Day celebrity is a blue shark swimming in the cold waters off Cork, Ireland. The inspiration for its name comes from the blue shark’s back color, not its mood. It’s currently listed as ‘near threatened’—a status all too common for sharks today. Why celebrate an apex predator that most humans associate with horror movies? Because without sharks acting as population control on other marine life, the world’s oceans would be a very different place. Blue sharks eat a lot of squid and fish, and like land predators, help to keep their prey from overpopulation. Mother Nature keeps us in a delicate balance, so it’s important that we don’t accidentally remove a vital member of that system… even if that creature seems scary to most of us.Desktop Version
A meerkat stands alone
A meerkat stands alone
Meerkats, also called suricates, are members of the mongoose family native to the southern African plains. They live in mobs (yes, that"s what a group of meerkats is called) of 20 to 50 animals that work together and share extensive networks of underground burrows. Our friend today, photographed in Namibia, appears to be on sentry duty, which is when a meerkat stands lookout for predators as the rest of the group forages for food, such as insects, small reptiles, and other delicacies. A sentry shift usually lasts about an hour, after which another meerkat takes over and the now-relieved sentry gets to focus on filling its belly.Desktop Version
Fall comes to the Last Frontier
Fall comes to the Last Frontier
Join us in celebrating Alaska Day here at beautiful Mendenhall Lake, just a stone’s throw from the state capital of Juneau. It seems a timeless sight, but the lake actually began to form in the early 1900s as Mendenhall Glacier receded, leaving a deeply carved valley in its wake that was soon filled with glacial melt. Today, the glacier still feeds the lake, much to the delight of the many visitors who arrive in Juneau each summer on cruise ships.Desktop Version
It’s Canada’s national day
It’s Canada’s national day
For Canada Day, we’re dipping our paddles in Still Creek, a long gentle stream in British Columbia. The canoe has long been associated with Canada’s national history, linked with early explorers, fur traders, and colonists who ventured out into the wilderness of the great north. An image of a canoe even appeared on early versions of Canada’s silver dollar, a coin which was later replaced by the ‘loonie,’ so named for the depiction of a common loon on one side.Desktop Version
Aw shucks, it’s oyster season in Galway
Aw shucks, it’s oyster season in Galway
When you think of Ireland, do you think of oysters? The proud oyster farmers here in Galway Bay think you should. This weekend, fans of the bivalve have poured into the Galway International Oyster and Seafood Festival, an event that claims to be the oldest oyster festival in the world--and the most recognized Irish festival outside of St. Patrick’s Day. Visit Galway yourself and you can sample the native oysters, which have been harvested here for centuries, and also try the Pacific varieties that were brought in during the 1970s. Fans of native Galway oysters tout their meaty texture and subtle flavor. They pair well with Guinness, we presume.Desktop Version
The moth wonderful time of the year
The moth wonderful time of the year
You"re forgiven if this is the first you"re hearing of National Moth Week, even though it"s been going strong for eight years as a global call to learn about and observe the fuzzy little insects. All too often dismissed as pesky, drab counterparts to our brightly fluttering friends the butterflies, moths seem to hog every light but the spotlight. But they don"t need flashy marketing to win the numbers game: With an estimated 160,000 moth species (though some estimates go up to half a million), they vastly outnumber their swaggering butterfly cousins in the Lepidoptera order.Desktop Version
Peel Castle on St. Patrick’s Isle with the Isle of Man in the background
Peel Castle on St. Patrick’s Isle with the Isle of Man in the background
The Isle of Man has a long and complicated history of invasions, conquests, and systems of government. Pictured on today’s homepage are the ruins of the cathedral on the grounds of Peel Castle, on St. Patrick’s Isle (which is connected by a causeway to the rest of the island). Vikings built the original wooden fortification during the 11th century on a location that had older Celtic monastic structures made of stone, which were incorporated into the castle. Over the next eight centuries, the various Norse, Scottish, and English rulers of the area added battlements, towers, and the cathedral to the grounds.Desktop Version
Fog above the forest
Fog above the forest
Today we"re looking out over Pisgah National Forest, which was established on this day in 1916. One of the first national forests established in the eastern United States, it comprises more than 500,000 acres of mountainous peaks, cascading waterfalls, and heavily forested slopes. With hundreds of miles of trails, Pisgah is a popular place for hiking, backpacking, road biking, mountain biking, fishing, and rock climbing.Desktop Version
Mardi Gras flower power
Mardi Gras flower power
While the purple flowers and green ironwork may not look overly festive to the untrained eye, residents of New Orleans will no doubt spot the significance of both, especially today, on Mardi Gras, the final day of Carnival. Purple and green are two of the three official colors of Mardi Gras, together with gold, and in a normal year the streets would be full of revelers decked out in all three colors as they dance and parade down the streets of the city. Due to COVID-19, there won"t be any parades this year, but the colors will still be on full display in the city"s famous French Quarter and elsewhere, including as colorful icing atop king cakes, a beloved treat that"s associated with the Carnival season.Desktop Version
Corfe gets creepy
Corfe gets creepy
Spying the crooked silhouette of Corfe Castle above the rolling, foggy hills of Dorset, England, you might not guess at the ruin"s former palatial beauty—you"ll more likely sense its long history of intrigue, and maybe feel a chill down your spine.Desktop Version
The Grand Départ: Tour de France begins
The Grand Départ: Tour de France begins
All eyes are on France today as 22 teams begin the 105th Tour de France, the prestigious cycling race that takes competitors more than 2,000 miles through the countryside. Our image show the peloton (the main pack of riders) racing down a tree-lined road from Montélimar to the Parc des Oiseaux in Villars-les-Dombes during Stage 14 of the Tour de France in 2016. If you’re new to the competition, here’s what you need to know: The race includes 21 stages that span 22 days. Competitors will climb at grades of up to 11 percent through the Alps and Pyrenees, and pedal over miles of cobblestone and dirt roads, country lanes and highways, at last coming to a finish at the Champs-Élysées in Paris. When you see the peloton, keep an eye out for the yellow jersey–at each stage it’s worn by the cyclist with the overall leading time and is ultimately awarded to the winner. Bonne chance, riders!Desktop Version
And you thought moths were boring
And you thought moths were boring
National Moth Week shines the porch light on an unlikely hero. Unlike their showier cousins, butterflies, moths get a bad rap from time to time, and that’s fair, as caterpillars of some moth species are agricultural pests. But before you break out the mothballs, take a gander at winged wonders like the comet moth, shown here. Scientists estimate that there are some 160,000 species of moths worldwide, many just as stunning as our comet moth, and tracking their health often helps us gauge the health of entire ecosystems.Desktop Version
It s leap day!
It s leap day!
For leap day (the extra day added to February every four years), we"re looking at a Wallace"s flying frog. Also known as parachute frogs, these critters live in the tropical jungles of Malaysia and Borneo. They spend most of their time in trees, gliding down to the ground to mate and lay eggs. They "fly" by leaping and using their webbed fingers and toes to glide as far as 50 feet.Desktop Version
Winter in England s Cotswolds
Winter in England s Cotswolds
The Cotswolds region is well known by Brits as a sleepy summer getaway, a day-trip destination for rambling through rolling pastures and charming villages while sampling delicious local produce. But in winter, this rural landscape takes on a new character when snows blanket the countryside.Desktop Version
Bridge to infinity
Bridge to infinity
Infinity Day has us visiting Perth, Australia, and the Elizabeth Quay Bridge. From this aerial view, the bridge closely resembles a tilted ∞, the common symbol for infinity first popularized in a 17th-century mathematical text. We recognize this unofficial holiday every August 8, because the number 8 resembles the infinity symbol—at least when tipped on its side—and the eighth day of the eighth month is an infinitely superior day to celebrate the infinite.Desktop Version
Land ho in New Zealand 250 years ago
Land ho in New Zealand 250 years ago
On October 6, 1769—250 years ago today—Captain James Cook reached New Zealand on his first voyage to the Pacific. He would eventually map the entire New Zealand coastline, including the area here at Marlborough Sounds, a network of ancient sunken river valleys on New Zealand"s South Island. The main purpose of Cook"s voyage to the Pacific was to sail to Tahiti and observe the transit of Venus across the face of the sun. Only after completing this task did Cook unseal the rest of his orders and learn he was to search the South Pacific for signs of a fabled great southern continent, Terra Australis Incognito. European Renaissance geographers believed this hypothetical southern landmass must exist in order to counterbalance the Northern and Southern Hemispheres.Desktop Version
From the mind of Frank Gehry
From the mind of Frank Gehry
Today"s image features the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas, designed by world-renowned architect Frank Gehry and his firm, Gehry Partners, in 2005. The building consists of three different elements: a medical building with spaces for patient care and research; the Life Activity Center, a for-hire event space which helps fund the center"s research; and a breezeway connecting the two spaces. Some have likened these elements to the hemispheres of the brain itself, with the medical building representing rational thinking and the event space (seen here) giving form to creative thinking.Desktop Version
Did they forget to fly south?
Did they forget to fly south?
Native to North America, trumpeter swans live near rivers, lakes, and coastal byways in northern and western US states in the lower 48, as well as in Canada and Alaska. Depending on where they live, these swans are either resident birds or medium-range migrators. What they all require, though, is year-round access to open water, since their diet consists almost entirely of aquatic plants. That may be why the swans in this image are drawn to the waters of Kelly Warm Springs in Wyoming, which won"t freeze even as snow lines the banks.Desktop Version
Tree of many colors
Tree of many colors
Hold the tinsel—the rainbow eucalyptus tree doesn"t need decorations to appear festive for the holidays. Its bark displays a palette of bright colors by design. As older layers of bark peel away in strips, new layers packed with green chlorophyll are revealed. These exposed areas eventually transition to hues of blue, purple, and orange as tannins accumulate. The continual peeling allows the tree to shed mosses, lichen, fungi, or parasites along with the bark, while also exposing the chlorophyll underneath, which boosts the tree"s ability to photosynthesize. The bark isn"t the only unusual thing about this species. While most people associate eucalyptus with koalas and Australia, the rainbow eucalyptus is native to the Philippines and Indonesia. It thrives in tropical climates like Hawaii, where our homepage trees were photographed.Desktop Version