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Earth Day
Earth Day
Today is Earth Day—a day dedicated to celebrating the planet we call home and raising awareness of environmental problems. The seeds of this day were planted back in 1969 when Senator Gaylord Nelson of Wisconsin witnessed events like the Cuyahoga River catching fire and the Santa Barbara oil spill and decided that the world needed an environmental initiative. A year later, the first Earth Day event was held. Now, it has grown into an annual event with more than a billion people in over 193 countries taking part.Desktop Version
National Find a Rainbow Day
National Find a Rainbow Day
Have you ever spotted a rainbow and felt a little lucky? National Find a Rainbow Day, celebrated today, is all about looking to the sky for that magical mix of sun and rain. Nature"s color wheel has long been linked to myths and legends, from Norse gods to the Irish leprechaun"s pot of gold. But beyond folklore, the science behind rainbows is just as compelling. The first real explanation came from Theodoric of Freiberg, a German physicist, in 1304. He discovered that rainbows form when sunlight enters a raindrop, bends, reflects inside, and then bends again as it exits. This process splits light into its colors, creating the spectrum we see. The classic "ROYGBIV" (red, orange, yellow, green, blue, indigo, and violet) doesn"t tell the whole story—rainbows contain millions of colors blended together.Desktop Version
Sandstone formations in the badlands near Caineville, Utah
Sandstone formations in the badlands near Caineville, Utah
Wavy sandstone ridges stretch across the Caineville Badlands, Utah, resembling nature"s brushstrokes on stone. These formations are made of fine-grained sediment that settled in ancient river deltas and inland seas and later hardened into stone. Over time, erosion carved through the layers, exposing flowing, ripple-like patterns. The sedimentary layers tell a story of shifting climates and ancient landscapes. The barren land, seen in today"s image, may appear lifeless, but during early spring, rainfall blankets the terrain with tiny purple and yellow flowers. Light and shadow shift throughout the day, offering photographers and visitors various angles. While much of the terrain remains rugged, some areas offer easy access, allowing visitors to explore without strenuous hiking.Desktop Version
International Day of the Worlds Indigenous Peoples
International Day of the Worlds Indigenous Peoples
Today we are celebrating the heritage and culture of native populations worldwide. There are some 5,000 Indigenous cultures in 90 countries around the world, from Samoa and Greenland to New Zealand and Nepal. One of the major challenges they face is the loss of their languages: It"s estimated that of the 4,000 Indigenous languages in the world, around 2,600 are in danger of becoming extinct.Desktop Version
International Womens Day
International Womens Day
Happy International Women"s Day, everyone! It"s a global celebration of resilience, rights, and remarkable women. First observed in the early 1900s, the day traces its roots to labor movements led by women fighting for better pay, improved working conditions, and voting rights. From its beginnings in 1911, when over a million people attended rallies in Europe, the day has grown into a worldwide movement. Today, it"s marked by events, protests, and campaigns addressing issues like gender pay gaps, domestic violence, and access to education. From trailblazers like Marie Curie, who illuminated science, to Malala Yousafzai, who champions education, women have proven time and again that they don"t just participate; they innovate.Desktop Version
International Day for Monuments and Sites
International Day for Monuments and Sites
Imagine a world without the pyramids, the Great Wall, or ancient cave cities—hard to picture, right? That"s why April 18 is the International Day for Monuments and Sites, an event recognized by UNESCO dedicated to protecting cultural treasures worldwide. This day is all about celebrating our history, raising awareness about endangered sites, and making sure future generations can enjoy them too.Desktop Version
Rapa Nui National Park, Easter Island, Chile
Rapa Nui National Park, Easter Island, Chile
Welcome to Rapa Nui, also known as Easter Island, one of the world"s most remote and enchanting paradises, roughly 2,330 miles west of mainland Chile. Famous for its iconic moai statues, Rapa Nui boasts breathtaking landscapes and rich cultural heritage. Experts are divided on when the island"s ancestral inhabitants first arrived from Polynesia, though many researchers suggest it was around the 8th century. Take in the mesmerizing sunrise featured in today"s image and explore the striking volcanic craters and lush, grassy plains where the imposing statues stand. The World Heritage property of Easter Island spans more than 17,000 acres, including four nearby islets.Desktop Version
Katahdin Woods and Waters National Monument anniversary
Katahdin Woods and Waters National Monument anniversary
Welcome to Katahdin, where dense woodlands and pristine waterways stretch out as far as the eye can see. Covering nearly 87,500 acres, this new national monument was established eight years ago today. Maine"s logging industry was a big part of this region for over a hundred years but declined toward the end of the 19th century. Efforts to preserve its landscape were spearheaded by philanthropist Roxanne Quimby. She started buying land near Baxter State Park in 2001 and donated it to the federal government in 2016, ensuring its preservation for future generations.Desktop Version
White trilliums blooming in Ontario, Canada
White trilliums blooming in Ontario, Canada
Three petals, three leaves, and three stigmas—that"s the white trillium for you, whose name derived from the Latin word for "three." Native to eastern North America, the spring-blooming species is one of the most common woodland wildflowers. Unlike some impulsive blossoms that burst into color at the slightest hint of warmth, this plant is a slow bloomer. From gracing US postage stamps to being the state wildflower of Ohio and an official symbol of Canada"s Ontario, the white trillium is ingrained in our culture. Beyond its aesthetic appeal, the plant has earned its stripes in the world of herbal medicine. So, next time you find yourself wandering through the woodland realm, keep an eye out for this floral gem!Desktop Version
National Fossil Day
National Fossil Day
For National Fossil Day, we"re looking at the mesmerizing Painted Hills, found in the John Day Fossil Beds National Monument in Oregon. Those stripes of red, tan, orange, and black were formed over tens of millions of years, the different layers in the claystone hills reflecting changes in the climate over that period. The monument itself is divided into three units, Painted Hills, Clarno, and Sheep Rock. In the latter, you"ll find the Thomas Condon Visitor Center with a paleontology lab and a museum displaying hundreds of fossils. In the fossil beds, the remains of more than 100 species of mammals have been found, including saber-toothed tigers, turtles, and opossums, as well as many fossilized plant species. While the landscape might sometimes look otherworldly, it offers us a peek into Earth"s dynamic and fascinating history.Desktop Version
Lake Magadi, Kenya
Lake Magadi, Kenya
What an unearthly view! This aerial photograph shows a flamboyance of lesser flamingos against the backdrop of Lake Magadi in Kenya. The lesser flamingo is one of six species of flamingo, a bird known for its vibrant pink plumage and distinctive feeding behavior. They use their specialized beaks to filter algae near the water"s surface and are often found in African soda lakes like Lake Magadi, which are brimming with cyanobacteria and algae for them to eat. The spectacle of thousands of these avian wonders congregating at the lake reveals the importance of these unique ecosystems.Desktop Version
World Octopus Day
World Octopus Day
What exactly are we looking at here? The veined octopus, also known as the coconut octopus, is one of the smartest animals on Earth, building shelters from seashells and coconut shells. If you peek inside, you may spot those telltale suction cups that cover the creature"s eight limbs. These arms contain clusters of neurons, which make them particularly sensitive, and each arm can be used separately to perform complex tasks. Octopuses can also match the color—sometimes even the texture—of their environment, making them even more difficult to spot. There"s lots more to learn about these fascinating animals, and World Octopus Day is a great day to do it. You could always start with the Academy Award-winning documentary "My Octopus Teacher."Desktop Version
Grandparents Day
Grandparents Day
Have you called your nana, abuela, pop-pop or lolo lately? No matter what you call them, there"s no better time to pick up the phone than Grandparents" Day, held on the Sunday after Labor Day. Grandparents play a special role in our lives, helping to raise new generations, passing down family history and sharing the wisdom of their experience. Wisdom is not always indicated by a thick Wilford-Brimley-esque mustache, but whiskers do lend a certain esteemed quality. Perhaps that"s why these Atlantic walruses look like they"re about to tell you why they voted for Hubert Humphrey.Desktop Version
International Day of Human Space Flight
International Day of Human Space Flight
Not so long ago, humanity took its first step beyond Earth. For thousands of years, we gazed at the stars, dreaming of what lay beyond. Then, on April 12, 1961, one man left the planet and changed history forever. That morning, Soviet pilot Yuri Gagarin climbed into a small, spherical spacecraft named Vostok 1. The countdown began. The engines ignited. As the rocket roared toward the sky, he called out, "Poyekhali!"—"Let"s go!" And just like that, Earth had its first space traveler.Desktop Version
World Penguin Day
World Penguin Day
Why fly when you can slide? Happy World Penguin Day! There are 18 species of these flightless birds, 17 of which live in the Southern Hemisphere. Today"s Antarctic image stars Adélie penguins, discovered in 1840 by French adventurer Jules Dumont d"Urville, who named them after his wife, Adèle. Despite their small size, Adélie penguins are sleek swimmers and can dive as deep as 575 feet in search of shrimp-like krill or fish. They are social animals that gather in small colonies for foraging, hunting, and protection. While it may seem mischievous, Adélies steal pebbles from nearby nests to strengthen their own, safeguarding their eggs and chicks from Antarctica"s harsh conditions and predators.Desktop Version
Spiegelgracht canal in Amsterdam, Netherlands
Spiegelgracht canal in Amsterdam, Netherlands
Have you ever wondered how canals changed the way cities developed? For thousands of years, people have built canals to transport goods, control water flow, and connect places. From ancient Mesopotamia and Egypt to medieval Europe, they transformed cities like Venice and Bruges into trade hubs. The Netherlands took this even further—by the 17th century, they were designing waterways that shaped cities such as Amsterdam.Desktop Version
Fish River Canyon, Namibia
Fish River Canyon, Namibia
The longest river in Namibia—the Fish River—has carved out Africa"s largest canyon over millions of years. Winding through weathered layers of gneiss and dolomite rocks, the Fish River Canyon is around 100 miles long and about 1,800 feet deep. Its hiking trail stretches for more than 50 miles, attracting adventure seekers and ultramarathon runners. Moreover, with Hartmann"s mountain zebras, klipspringers, and eastern rock elephant shrews, the canyon is teeming with creatures big and small. So, whether you are there for hiking, trekking, camping, or just soaking in the scenery, one thing"s for sure: Fish River Canyon is a catch you won"t soon forget.Desktop Version
Lei Day
Lei Day
As the first day of May dawns in Hawaii, Lei Day bursts forth in a riot of color, fragrance, and festivity. Leis are garlands crafted from flowers, leaves, and even shells, carrying significant cultural importance in Hawaiian culture. Leis were brought by the Polynesians as they migrated eastward through the Pacific Islands before reaching Hawaii between 1000 and 1200 CE. They represent love, respect, and the ever-present aloha spirit, described as "the coordination of mind and heart within each person." Lei Day is an all-day fiesta that includes parades, pageants, lei-making contests, hula dances, and feasts. It also marks the beginning of Asian American and Pacific Islander Heritage Month.Desktop Version
Happy Valentines Day!
Happy Valentines Day!
Love is in the air today: it"s Valentine"s Day! Across the globe, millions of flowers will be sent, and romantic restaurants will be fully booked. This holiday has its origins in the story of Saint Valentine, a 3rd-century Roman priest who, according to legend, secretly married couples to spare the husbands from conscription into the Roman army.Desktop Version
Summer Olympics begin in Paris
Summer Olympics begin in Paris
Welcome to Paris, the City of Light, which is hosting the Summer Olympics for the third time. What makes these Games unique is the opening ceremony, which will be held outside a stadium for the first time. Participants will parade along the Seine on a flotilla of boats, passing under the Pont Neuf, pictured here, and cheered by spectators lining both banks. Paris is no stranger to historic firsts; the 1900 Games included women competing for the first time, although they made up only 22 of 997 athletes.Desktop Version
International Day for Biological Diversity
International Day for Biological Diversity
Today we"re celebrating the biodiversity of our planet. What exactly is biodiversity? It refers to the variety of living things, from animals and plants to fungi and microorganisms, in one area. This delicate but vigorous balance in nature is what keeps us all alive. That"s definitely worth celebrating! May 22 was named International Day for Biological Diversity by the United Nations in 2000. Unfortunately, the biodiversity of Earth is slowly decreasing due to climate change, the draining of natural resources, urbanization, and pollution, among other factors. Campaigners are urging governments, businesses and individuals to take action to boost biodiversity, to protect healthy ecosystems that supply us with water, food, medicines, and more. After all, we are blessed with intriguing species such as the Tasmanian snow gum—the tree seen in today"s image—that takes root in one of the most biologically diverse places on the planet, the Mount Field National Park in Tasmania, Australia.Desktop Version
Celebrating Charles Darwin
Celebrating Charles Darwin
Today, we celebrate Darwin Day—a shout-out to Charles Darwin and his game-changing ideas about life on Earth. As an English naturalist, geologist, and biologist, his theory of natural selection revolutionized our understanding of species, evolution, and our role in the natural world. His work, "On the Origin of Species," published in 1859, laid the foundation for modern evolutionary biology. This day marks the birthday of Darwin and honors his genius while promoting curiosity, science, and critical thinking.Desktop Version
Red lechwe, Okavango Delta, Botswana
Red lechwe, Okavango Delta, Botswana
With their elegant leaps and graceful movements, lechwe are the epitome of agility and poise on the African savanna. These antelopes, known for their distinctive reddish-brown coats and lyre-shaped horns, are native to the wetlands and floodplains of south-central Africa, including the Okavango Delta in Botswana, which is a UNESCO World Heritage Site. Lechwe are social animals, often found in herds of thousands. In the heart of the delta, they are an integral part of the region"s rich biodiversity, coexisting with other species like elephants, lions, rhinos, and hippos, wading through the water. Their presence adds to the delta"s natural allure, which draws in thousands of safari enthusiasts, and is proof of wildlife"s resilience in the face of environmental challenges.Desktop Version
National Umbrella Day
National Umbrella Day
It"s National Umbrella Day today, a quirky celebration that honors one of the simplest yet most essential inventions in human history: the umbrella, or parasol. Over 4,000 years ago, in ancient Egypt, Assyria, and China, these foldable canopies were first used to shield people from the sun. It wasn"t until the 17th century that the umbrella, as we know it today, gained popularity in Europe, initially as a luxury item primarily for women. Fast-forward a few centuries, and these weather shields have become a staple in pop culture, too. Remember Mary Poppins with her iconic umbrella that helped her fly, or Rihanna"s hit song "Umbrella"?Desktop Version
Cheetah in Ngorongoro Conservation Area, Tanzania
Cheetah in Ngorongoro Conservation Area, Tanzania
Blink and you"ll miss it! The fastest mammal in the world, the cheetah, is one of Tanzania"s iconic big cats. Pictured here in Ngorongoro Conservation Area, cheetahs inhabit diverse landscapes from the Serengeti grasslands to the arid expanses of the Sahara. They have long tails, elongated legs, and a slender build that helps them move quickly.Desktop Version