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Mar 18, 2023Gamboa Crater, Mars

It would be pretty tough to live on Mars. It"s cold, dry, and the conditions are harsh. The planet"s average temperature is about –81 degrees Fahrenheit, but it can get as low as –243 at the poles. But with many canyons, extinct volcanoes, and ice caps, it"s beautiful to look at from afar. Most photos of the red planet highlight its rusty color, caused by high levels of iron oxide.Desktop Version

Mar 15, 2022Beware the Ides of March

We"re at the Roman Forum for the Ides of March, a date made famous as the time of Julius Caesar"s assassination. According to the ancient historian Plutarch, Caesar had been warned by a seer that his life would be in danger no later than the Ides of March, something that William Shakespeare dramatizes in his famous tragedy of Caesar’s life and assassination. While historical fact and fiction can diverge, we do know that before March 15, 44 BCE was over, a group of senators had intercepted Caesar here in the Forum as Caesar was on his way to the Senate House. They stabbed him 23 times, killing him. Afterward, Rome descended into civil war, ending the Roman Republic, and leading to the rise of the Roman Empire.Desktop Version

Jul 17, 2018Is there a bug-egg emoji for this?

Nothing says ‘smile!’ like a bunch of eggs laid by a member of the Pentatomidae family of insects. Not all stink bug eggs look like they have faces, but this incident of ‘life imitates emoji’ was too good to pass up today. That’s right, it’s World Emoji Day. Those tiny, cartoonish pictures that often stand in for words and phrases in social media posts and text messages have become a system of communication all their own. But why on July 17? Early on in the (very recent) history of emoji, the calendar emoji displayed July 17. So, when the time came for emoji to get their own day of recognition, this date stood out above all others.Desktop Version

Mar 15, 2020Celebrating 200 years of statehood

We"re wandering out onto the striated coastal rocks of Maine"s Pemaquid Point at sunrise to mark 200 years since Maine joined the Union as the 23rd US state. With roughly 5,000 miles of jagged, rocky coastline, Maine is studded with dozens of lighthouses, and the light at Pemaquid Point is one of the most celebrated—and historic. First, that history: President John Quincy Adams commissioned the lighthouse in 1827, but it needed to be rebuilt in 1835 after the original began falling apart. (Note: Don"t use salt water when mixing your mortar.) Maine residents chose the Pemaquid Point Light for display on their state"s coin as part of the US 50 State Quarters Program.Desktop Version

Aug 11, 2021Everyone s watching the Perseids

These dinosaurs are (nervously?) looking at the annual Perseid meteor shower, photographed at the Dinosaur Museum of Erenhot in the Inner Mongolia Autonomous Region of China. Known as Dinosaur City, Erenhot gained attention in the 1920s when dino fossils were found there. It"s believed that more than 20 kinds of dinosaurs lived in the area during the Cretaceous Period around 70 million years ago.Desktop Version

May 20, 2018Who doesn’t love a ‘Puppy’?

The Guggenheim Foundation has opened three major museums around the world—in New York City; in Venice, Italy; and here in Bilbao, Spain. A fourth museum is currently being developed in Abu Dhabi, in the United Arab Emirates. The Guggenheim Museum Bilbao is home to a modern art collection and large, site-specific pieces, such as ‘Puppy’ by Jeff Koons, seen here. Koons combined the plants and planting style of 18th-century European gardens with a very 20th-century pop-art aesthetic when he created the giant dog sculpture. Where are we off to next?Desktop Version

Jul 15, 2021A river runs through rice fields

We"re peering down the winding Ngo Dong River at a group of rowboats meandering through rice paddy fields. This is Ninh Bình province in Vietnam, about 60 miles south of Hanoi. On these two-hour tours by traditional Vietnamese rowboat, visitors wend their way between limestone karst peaks, through grottoes, and, if they"re lucky, by workers harvesting rice in the fields, their wide-brimmed hats shielding them from the sun. Perhaps the most spectacular time to take this river cruise is around harvest time in late May and early June when the paddy fields are awash in a golden glow with a backdrop of bright green hillsides. But don"t be surprised if the person rowing your boat moves the oars from hands to feet. It"s tradition here for rowers to give their arms a break and let their legs take over.Desktop Version

Mar 23, 2021Uncommon clouds are gathering

A satellite view of the Mania River in Madagascar allows us to see a curious cloud pattern. It"s common for cool, moist marine air to rise and form dense clouds over bodies of water, then for the clouds to evaporate as they drift over warmer, drier land. The opposite is happening here: Puffs of clouds are forming over land, but not over water. That"s because Madagascar"s tropical rainforests are warm and wet enough that evaporating moisture rises as the day heats up. When it rises high enough, the moisture encounters cooler air, which condenses the water into clouds. Generally speaking, clouds will form where the air is rising, which in this case is only over the land. Above the river, the air is cooler and descending, so no clouds are forming there.Desktop Version

Jun 26, 2019Get amped for Glastonbury

Greetings from Glastonbury Tor and St. Michael"s Tower in Somerset county of South West England. The tor (a Celtic word for an isolated hill) is often mentioned in Celtic mythology, and some believe it to be the site of Avalon, a mythical island central to legends of King Arthur. Glastonbury Tor has other enduring spiritual associations as well, particularly to various neopagan beliefs. Archaeological evidence suggests that several buildings have been constructed at the top of the hill over many centuries, but all that remains today is the roofless tower of St. Michael’s Church, built in the 1300s.Desktop Version

Jul 17, 2023Cloughoughter Castle, County Cavan, Ireland

Cloughoughter Castle sits on a small island in the middle of Lough Oughter, a huge complex of lakes and waterways in County Cavan in Ireland. Its first stones are thought to have been laid in the early 13th century by the Anglo-Norman de Lacy family, but the O"Reilly clan took possession of the area in 1233 and completed the castle"s construction. They retained control of Cloughoughter Castle for centuries, but by 1653, it had been bombed and abandoned. Since then, it has been in ruins, resplendent in a sort of tattered grandeur. It can only be visited by boat but, as a symbol of Ireland"s medieval heritage, it is a must-see for history and castle enthusiasts alike.Desktop Version

Jun 16, 2020In the footsteps of Leopold Bloom

Today we"re looking down at St. Stephen"s Green in Dublin in honor of Bloomsday, a day when people celebrate Irish author James Joyce and his famous 1922 novel "Ulysses." But why today, you ask? That"s because the novel follows the meanderings and thoughts (and meandering thoughts) of the protagonist, Leopold Bloom, and a host of other characters—real and fictional—from 8 AM on June 16, 1904, through the early hours of the next morning.Desktop Version

Nov 15, 2019Mesmerizing murmuration

Around this time of year, as temperatures dip in the Northern Hemisphere, European or common starlings put on a dazzling show. Most of the time, these noisy birds are scorned for their bullying behavior at the bird feeder. But in autumn months, they gather to roost in huge flocks, as they’re doing here in Blackpool, England. At dusk, the starlings take flight en masse and flock together in a hypnotizing, swirling cloud of fluttering wings. These flocks are called mumurations. They"re thought to help keep the birds warm while also acting as a defensive tactic to confuse predators like hawks and falcons. But maybe the raptors are rendered harmless simply because they’re awestruck by the starlings" synchronized spectacle.Desktop Version

Feb 4, 2025Golden Bridge, Bà Nà Hills, Da Nang, Vietnam

Two colossal stone hands cradle a shimmering, golden walkway, as though the mountains themselves are offering it to the sky. This is Cầu Vàng, or the Golden Bridge, a pedestrian bridge in the misty mountains near Da Nang in central Vietnam. Opened in 2018, the bridge quickly became a global sensation, captivating travelers with its unique design and awe-inspiring setting.Desktop Version

Mar 10, 2022Bobbio, Italy

Between the metropolis of Milan—the fashion and design capital of Italy—and the fabled seaport city of Genoa, you"ll find this small river town in northern Italy. People have resided here since ancient times, at least as far back as the Roman era, but the town really began to flourish when the abbey was constructed in the 7th century. For much of the Middle Ages, the Bobbio Abbey and its vast library made the town a center of religion, culture, and learning.Desktop Version

Jul 16, 2021Whatever floats your boat

These turquoise waters are lapping the sands of Mont Choisy Beach in Mauritius, an island nation off the southeastern coast of Africa. It"s a popular spot for locals and tourists to swim, enjoy the sun, or head out in one of these boats to catch some fish. The island has a unique cultural history. Most scholars believe it was known to Arab seafarers by the 10th century, but it remained uninhabited until Portuguese sailors established a base on the island in the early 1500s. Mauritius was later colonized in succession by the Netherlands, France, and Great Britain before gaining independence in 1968. Over the years, Mauritius has evolved from a low-income economy based mostly on sugarcane (still one of its biggest exports), to a more diverse one that includes tourism, clothing production, and technology.Desktop Version

Dec 14, 2019The Christmas Bird Count begins

Today marks the start of the annual Christmas Bird Count, a bird census sponsored by the National Audubon Society that also happens to be the longest-running citizen scientist survey in the world. Each year the count runs from December 14 to January 5, giving bird lovers across North America a chance to join in, get outside, and spot some birds. The findings recorded by participants are collected and used to gauge the health of various bird populations. This information is then used to focus conservation efforts on particular species and geographical areas.Desktop Version

Oct 1, 2019It s Coffee Day

These coffee cherries are from Colombia"s "Coffee Triangle," where coffee trees flourish among some of the tallest palm trees you may ever see. The cherries take several months to mature. As they ripen, they change color from bright green to dark red. The dark red cherries are perfect for picking. Once the cherries are picked, the fruit surrounding the seeds (or "beans") is removed, then the beans are cleaned and eventually roasted. Colombian coffee is regarded as some of the best in the world.Desktop Version

Feb 12, 2023Blue-footed booby, Galápagos Islands

Today we"re celebrating Darwin Day with this blue-footed booby on the shores of the Galápagos Islands, where the famous naturalist observed wildlife and collected specimens that would inform his theory of evolution.Desktop Version

Oct 4, 2019World Space Week begins

For the start of World Space Week, today"s homepage features a composite of images taken by NASA"s Juno probe as it swooped past Jupiter. The largest planet in our solar system, Jupiter also has the largest number of moons: 79. Jupiter is the Roman counterpart to Zeus, and the planet"s major moons are named after Zeus", shall we say, extra-marital partners. So, when it came time to name NASA"s most ambitious Jupiter probe, they decided to name it after Jupiter’s wife, Juno, so that she could keep an eye on him. Every 53 days in the course of its wide and complex orbit, the Juno probe makes its closest approach, snapping shots like these as it speeds past the gas giant in just two hours. World Space Week starts on the anniversary of the launch of the very first space probe, Sputnik, which entered orbit around the Earth on October 4, 1957.Desktop Version

Aug 16, 2023Overseas Highway, Florida Keys

Once upon a time, there lived a wealthy industrialist, Henry Flagler, who embarked on the herculean task of creating an overseas railway connecting mainland Florida to Key West. When it opened in 1912, it was dubbed the Eighth Wonder of the World. However, the triumph was short-lived. It was hit by a hurricane on Labor Day, 1935 and the railroad discontinued operations. The railway was sold to the US government and rebuilt as an automobile highway, opening in 1938.Desktop Version

Oct 27, 2019A festival of lights in India

In observance of the Hindu holiday called Diwali, people gathered on the banks of the Sarayu River in the northern Indian town of Ayodhya in autumn of 2018 to light candles and oil lamps called "diyas." Attendees that night set a Guinness World Record by keeping 300,000 diyas lit for five minutes. The lights are symbolic of the triumph of good over evil, light over darkness—central themes of Diwali. Ayodhya is a significant location in the Hindu faith, long thought to be the birthplace of Rama, an incarnation of Vishnu, who represents virtue. And as Diwali, a four- or five-day celebration reaches its peak today (the third day), the Hindus of Ayodhya will be back to light up the riverbank. Will they set another record?Desktop Version

Feb 1, 2020Mapping courage in the Seventh Ward

To mark the beginning of Black History Month, we"re visiting a highlight of Philadelphia"s famous Mural Mile. The larger-than-life figure depicted on the left in this mural is W.E.B. Du Bois, trailblazing scholar, sociologist, author, and co-founder of the National Association for the Advancement of Colored People. It was here, in Philadelphia"s Seventh Ward neighborhood during the late 1890s, that Du Bois conducted a detailed study of an African American community. He used methodologies—including detailed data visualizations—that were decades ahead of his time, mapping out every household and documenting the challenges that residents encountered as they tried to achieve success and happiness in the decades after Reconstruction and the dawn of the Jim Crow era.Desktop Version

Nov 25, 2019The migrating monarchs of Michoacán

Probably the most recognizable of all the butterfly species, monarchs are helpful pollinators that can be found across the United States and Canada in the summer. But each fall, millions of these orange and black beauties embark upon one of the world"s most amazing migrations. The insects make use of air currents to make the long journey south to the mountains of southwestern Mexico, a flight of up to 3,000 miles. Aside from being a staggeringly great distance for these delicate insects to fly, it"s also a journey to a place that not one of them has ever been to before. And unlike the many bird species that undertake annual round-trip migrations, these butterflies will never return to the north. Why not? Because the distance and length of the total annual migration cycle is greater than the lifespan of individual monarchs.Desktop Version

Apr 15, 2021Jackie Robinson Day

On April 15, 1947, more than 26,000 spectators at Brooklyn"s Ebbets Field witnessed history as Jackie Robinson became the first Black player on a modern-era major league baseball team. (Three Black players played in the major leagues briefly in the 19th century before the color line was fully established.) Robinson endured racist resistance throughout his first season with the Brooklyn Dodgers, but the national pastime"s color barrier was broken, and other players followed him within months. In 1997, Major League Baseball retired Robinson"s number, 42, across all teams, and in 2004 it began the annual April 15 observance of Jackie Robinson Day. This photo shows Robinson signing autographs for fans at spring training in the Dominican Republic the year after his debut.Desktop Version

Apr 15, 2020Art and soul

Art can seem like a portal to another dimension, as Irish-born artist Laura Buckley shows us in today"s mind-bending image. She posed here (and there, and there, and there…) with her mixed-media sculpture "Fata Morgana" at London"s Saatchi Gallery last year. The work is outwardly unassuming, made from a hexagonal wood-frame tube lined on the inside with reflective acrylic and capped on one end with a projection screen. When a viewer enters the installation, the mirrored surfaces reflect their image along with a video projected on the screen, merging the two into a whimsical mirage.Desktop Version

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