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World Reef Awareness Day
World Reef Awareness Day
The Great Barrier Reef runs for 1,430 miles along Australia"s northeastern coast, providing a home for thousands of species, including more than 1,500 types of fish. Here, you"ll find whales, dolphins, turtles, sharks, dugongs, and algae, all living together in a delicate ecosystem that relies on the coral reef. Sadly, climate change and pollution threaten this iconic site, the largest reef in the world. On June 1, we observe World Reef Awareness Day to remind people of the importance of safeguarding coral reefs, which provide food and shelter for about 25% of all marine life, to maintain the balance of nature.Desktop Version
Earth Science Week
Earth Science Week
Hundreds of shades of blue are marbled together in this cool shot. No, it"s not a work of modern art, it"s right off the brush of nature. This is a satellite photo of phytoplankton blooming near Alaska as the cool, salty Chukchi Sea mingles with warmer, fresher water closer to shore.Desktop Version
Prince Christian Sound in southern Greenland
Prince Christian Sound in southern Greenland
The sheer size of Greenland is hard to put in perspective. The world"s largest island is more than 836,000 square miles—that"s more than three times the size of Texas and 170,000 square miles larger than Alaska. It is a land of deep fjords and thick ice that must have made the Norse explorers feel right at home when they landed there a thousand years ago.Desktop Version
Go climb a tree
Go climb a tree
This egg-shaped observation tower in Germany’s Bavarian Forest National Park is part of one of the world’s longest canopy trails—and one of the most distinctive. Visitors reach the tower via a nearly 1-mile-long elevated walkway that winds around the tops of firs, beeches, spruces, and more at eye-level. From the 144-foot tower, built over three ancient fir trees, they can see the vast expanse of Bavaria’s forests and countryside. Not only do canopy walkways like this one give visitors a bird’s-eye view of the forest, they also allow people to experience nature without harming it.Desktop Version
Freeloaders of the avian world
Freeloaders of the avian world
Ever felt like some folks are just born jerks? Birds can relate. Take for example the uninvited speckly-white visitor to this robin"s nest: That smaller egg belongs to a baby cowbird whose mother sneakily laid it among the blue robin eggs when no one was looking. Once the baby birds all hatch, the cowbird will grow much faster and larger than its robin "siblings," soon becoming an only chick by muscling them right out of the nest. And if mama robin ejects the cowbird egg before it hatches, the cowbird mom may take notice and chuck the remaining robin eggs from the nest out of spite.Desktop Version
Cousins Day
Cousins Day
When it comes to honoring family members, parents and siblings get most of the attention—but today, let us sing the praises of our cousins on Cousins Day! These extended family members hold a special place in our hearts. They"re not quite siblings, but more than mere friends. When we"re young, they"re the buddies we go adventuring with, while the adults stay behind to make small talk. Maybe you"ve fallen out of touch with your cousins, or maybe you"re still close—either way, today"s a great day to reach out, say hello, and reminisce. That"s what it looks like these zebras are doing; there"s likely a set of cousins or two in this group that"s horsing around on the savannah in Tanzania.Desktop Version
Rockefeller Center Christmas tree lighting
Rockefeller Center Christmas tree lighting
As December approaches, New York gears up for a sparkling spectacle. On November 29, the Rockefeller Center Tree Lighting will bring you festive vibes. The roots of this holiday tradition go back to 1931, when builders put up a balsam fir to show gratitude for their jobs amid the bleakness of the Great Depression. That tree was decorated with paper garlands and tin cans and in 1933 the first tree-lighting ceremony took place. Today, this towering Norway spruce is adorned with over 50,000 multicolored LED lights and topped with a Swarovski crystal star. The illumination of the 80-foot tree is a full-blown extravaganza with musical performances and celebrity sightings. Its mesmerizing glow marks the official arrival of the holiday season in the city that never sleeps, and you don"t want to miss it!Desktop Version
Mandarin duck, Richmond Park, London, England
Mandarin duck, Richmond Park, London, England
The cold, dreary backdrop of winter can be the perfect time to show off a little color. This male mandarin duck is doing just that with his handsome crest and vibrant plumage. Come molting season, he will look more like his brown-and-white female counterpart, except for his brightly colored beak.Desktop Version
A desert arts pop-up, just popped up
A desert arts pop-up, just popped up
Today we’re viewing North America’s largest arts and music festival—dust free—from a satellite lens. Welcome to Black Rock City, the pop-up home of Burning Man, a raucous event that takes place in late summer each year on the sun-scorched alkali flats of Nevada’s Black Rock Desert. It’s an unusual set-up, a counterculture mecca where gifts reign supreme and money has no value.Desktop Version
Seville, Spain
Seville, Spain
The first recorded expedition to successfully circumnavigate the Earth returned here to Seville, Spain, 500 years ago today. This was the remnants of the Spanish fleet that had set sail under the command of Ferdinand Magellan almost exactly three years previously with the goal of finding a western sea route to the rich Spice Islands of Indonesia. While Magellan gets the glory as leader of the expedition, he didn"t actually complete the marathon voyage—he had been killed in a skirmish in the Philippines in April 1521. In the end, his place as leader of the five-ship voyage was filled by Juan Sebastián Elcano, whose command ship, the "Vittoria," was the only one in the convoy that survived the trip. Harsh conditions, starvation, scurvy, hostile encounters, and other struggles had taken their toll: Of the roughly 270 crew members who set out, only 18 returned with the expedition.Desktop Version
Azaleas blooming on Hwangmaesan Mountain, South Korea
Azaleas blooming on Hwangmaesan Mountain, South Korea
Vast colonies of royal azaleas paint the sides of South Korea’s Hwangmaesan Mountain a vibrant purple as summer approaches. Sightseers flock to see this striking pink and purple carpet of flowers which was created gradually as dairy cows and sheep ate the grass and plants, but left behind the poisonous azaleas which spread across the mountain.Desktop Version
World Whale Day
World Whale Day
As surely as some tourists return to Hawaii each and every year, thousands of humpback whale families, like the one seen in this photo, make an annual winter visit to the waters off Maui. They"re the reason behind today"s cetacean celebration: World Whale Day. While the observance honors whales of all kinds in all the world"s oceans, it was here in Maui that the Pacific Whale Foundation first held the event and timed it to match the yearly return of the humpbacks.Desktop Version
D-Day remembered
D-Day remembered
On June 6, 1944, after months of planning, Allied forces descended on the beaches of Normandy, France, for the start of one of the most ambitious military attacks in history. Codenamed Operation Overlord, the Battle of Normandy was an operation to free Western Europe from Nazi occupation during World War II. This military action would play a pivotal role in the Allies" win against the Axis powers.Desktop Version
Discovery Day in Yukon, Canada
Discovery Day in Yukon, Canada
It"s Discovery Day in Yukon, Canada, a day to commemorate the 1896 discovery of gold at Bonanza Creek. The event set off the Klondike Gold Rush, which attracted thousands of prospectors to the region in search of gold, leading to significant economic and social changes. The population increase led to Yukon separating from the Northwest Territories and the formation of Yukon Territory in 1898.Desktop Version
Gentoo penguins in Antarctica
Gentoo penguins in Antarctica
For the uninitiated, the origins of the made-up holiday Festivus can be traced back to an episode of the hit "90s show, "Seinfeld." Based on the real family tradition of one of the show"s writers, Festivus has taken on a life of its own in the real world and provides fans with a fun, tongue-in-cheek way to celebrate the holiday season while ignoring its pressures and commercialism.Desktop Version
Winter solstice
Winter solstice
The days only get longer from here! The Northern Hemisphere marks the beginning of winter today, but the winter solstice is also the shortest day of the year. The rainbow that encircles the sun in our image, a sun halo, is above Lake Antermoia, in the Dolomite Mountains of northern Italy. Sun halos form when sun or moon light shines through ice crystals suspended in the upper atmosphere. When the light of the sun hits the crystals they serve as a prism, separating the light into individual colors of the spectrum, the same way rainbows occur after a rain shower.Desktop Version
Bản Giốc–Detian Falls, Vietnam
Bản Giốc–Detian Falls, Vietnam
Welcome to a spot where rivers meet borders in the most stunning way: Bản Giốc–Detian Falls, featured in today"s image. Tucked between the karst hills of Daxin County in China and Trùng Khánh district in Vietnam, these falls tumble along the Quây Sơn River. Over 95 feet tall and 980 feet wide, it holds the distinction of being the widest waterfall in Vietnam. Located just 169 miles north of Hanoi, this waterfall have gradually worn away their crest over the years, inching upstream. For most of the year, they flow as two distinct cascades, but come summer, when the rains swell the river, they merge into one big fall.Desktop Version
Birds of a feather
Birds of a feather
For World Migratory Bird Day, we"ve journeyed down to Bosque del Apache National Wildlife Refuge in southern New Mexico to join a group of sandhill cranes and their mallard duck friends as they feed in shallow water. Each year beginning in late October, this 57,000-acre refuge becomes the winter home to tens of thousands of migratory birds including sandhill cranes and various species of geese and ducks who travel from as far away as Alaska and Siberia to hunker down in warmer climes. They stay until late February when they begin their journey back north to their summer homes.Desktop Version
Day of the Dead
Day of the Dead
If you"ve ever been in Mexico during Day of the Dead festivities, then you"ve no doubt come across the beautiful orange flowers you see here. Marigolds are one of the main symbols of this festive, two-day celebration. The flowers are native to North America, and were deemed sacred by the Aztecs, who likened their bright colors to the sun. According to legend, those colors and the flowers" sweet aroma have the power to lure the souls of the dead back to this world from beyond.Desktop Version
Our Lady of the Rocks
Our Lady of the Rocks
Local legend here in Perast, Montenegro, has it that two brothers were returning from a dangerous sea voyage in 1452 when they spotted an icon of the Virgin Mary and Child in the waters near Saint George, a natural island in the Bay of Kotor. One of the brothers had injured his leg on the journey, but in the morning it had healed. Taking this as an omen, they vowed to honor the Virgin Mary by building her a church on the spot where they"d found the icon. They began dropping stones there, and even scuttling old ships. A tradition was born, and over decades, the fishermen of Perast would drop a stone in the water at that spot before heading to sea.Desktop Version
Bluebells in Hertfordshire, England
Bluebells in Hertfordshire, England
For just a few weeks every spring, across the pond in England and under the newly forming woodland canopy, one of the most enchanting flowers begins to bloom. The bluebell is known by many names but those who know it as the "fairy flower" might be the most prepared to withstand its strong, sweetly scented allure. According to British folklore, a blooming bluebell carpet on the woodland floor is a mystical place where fairies live. The legends hold that fairies hang their spells on the flowers to dry, and disturbing them would unleash the magic. In earlier times, children were warned that picking bluebells would cause them to be spirited away. Even adults could fall victim to the flower, being doomed to wander the woods and never escape. And heaven forbid you ever happen to hear the fairies ring the bluebells for their gatherings—it means your death is imminent, a belief that inspired another name for bluebells: "dead men"s bells."Desktop Version
Menton, France
Menton, France
Anchoring the eastern end of the French Riviera near the Italian border is Menton, the so-called Pearl of France. It"s prized for its beauty and incredible weather that features an average of 316 days a year with full or partial sun. That climate enables Menton to enjoy amazing lemon yields that have given rise to the annual Fête du Citron, or Menton Lemon Festival, a 17-day extravaganza in February featuring floats and sculptures created out of lemons and oranges. More than 200,000 visitors marvel at the nearly 150 tons of fruit used in the festival.Desktop Version
Lunar eclipse
Lunar eclipse
If you"re lucky enough to find yourself under a cloudless sky tonight, you"ll be able to see one of our solar system"s great wonders, a full lunar eclipse, also known as a "blood moon." The spooky nickname derives from the reddish hue the moon takes on when Earth casts its shadow upon it. Featured here is a blood moon over the Swiss Alps. A full lunar eclipse occurs when the Earth and moon align perfectly with the sun, and the moon falls directly behind Earth"s shadow. When Earth falls behind the moon"s shadow, a solar eclipse occurs.Desktop Version
Old Fortress, Corfu, Greece
Old Fortress, Corfu, Greece
This imposing structure is the Old Fortress on the Greek island of Corfu, off the western coasts of Greece and Albania. Situated in a strategic location between the Ionian and Adriatic seas, Corfu became one of the most fortified places in Europe amid successive sieges by the Ottoman Empire. The island was ruled by the Republic of Venice for 400 years until the late 18th century, which built forts in Corfu"s Old Town to defend its maritime trading interests. They held off three Ottoman sieges in 1537, 1571, and 1716 but have been repaired, rebuilt, and added to over the centuries. The Old Fortress has witnessed the rise and fall of mighty empires for hundreds of years, from the tip of a rocky peninsula jutting into the sea. These days, however, it is home to the public library and Corfu"s archives.Desktop Version
Moselle River loop near Kröv, Germany
Moselle River loop near Kröv, Germany
The Moselle River, a tributary of the powerful Rhine, meanders through the landscapes of France, Luxembourg, and Germany. Along the way, it carves out valleys of breathtaking natural beauty, dotted with towns and historic landmarks. Lush, sun-drenched vineyards cling to the steep slopes overlooking the river, producing some of the finest wines in the world, including riesling, pinot blanc, and pinot gris, to name a few. The river"s gentle flow and sparkling waters invite visitors to embark on leisurely cruises or peaceful walks along its shores. The Moselle creates a haven for nature lovers, wine enthusiasts, and history buffs alike.Desktop Version