Twenty-four years ago, on September 11, 2001, the United States (US) faced the deadliest terrorist attacks in its history. The attacks were carried out by members of the Islamic extremist group al-Qaeda. They killed 2,977 innocent people, leaving a lasting impact on the US....

Over the Fourth of July holiday weekend, the Hill Country region in Central Texas experienced intense rainfall. This caused the Guadalupe River, which runs through much of the area, to surge over 26 feet (7.9 m) in about 45 minutes. The rapid rise triggered one of the worst flash floods in US history. The water swept through entire communities with little warning, engulfing land and washing away vehicles, buildings, and bridges. Thousands of residents lost their homes and businesses. As of July 25, 2025, 138 people have died — the 10th-highest toll on record for a US flash flood. Three are still missing....

On April 23, 2025, the Philadelphia Zoo introduced four female hatchlings of the critically endangered Western Santa Cruz Galápagos tortoises to the public. The new arrivals were named Dorothy, Rose, Blanche, and Sophia — after characters from the iconic television series The Golden Girls. They are the first of their kind to be born at the zoo in its 150-year history. Prior to this, there were only 44 Western Santa Cruz tortoises in US zoos, including three at Philadelphia....

Just when it seemed every color under the sun had been named, researchers at the University of California, Berkeley, have identified a new one. Called “olo,” this shade lies outside the normal range of human vision. It can only be seen under specific conditions using a laser. The five people who have seen "olo" describe it as a "blue-green of unprecedented saturation."...

A powerful earthquake rocked Myanmar on March 28, 2025. The magnitude 7.7 tremor devastated Mandalay, the country’s second-largest city. As of March 31, officials have confirmed more than 1,700 deaths. Over 3,400 are injured, and 139 people are still missing....

St. Patrick's Day, celebrated annually on March 17, is a lively holiday that honors the most famous of Ireland's three patron saints. Though widely known for its parades, shamrocks, and everything green, the day's roots are steeped in history....

Since early January 2025, multiple large wildfires have erupted in and around Los Angeles (LA), California, tearing through dry vegetation and destroying entire neighborhoods. As of January 15, 2025, more than 12,000 homes, businesses, schools, and other structures have been destroyed. At least 25 people have died, and more than 100,000 have been forced to flee their homes. Many of these fires are still uncontained. Here is what we know so far....

Martin Luther King Jr. Day, observed annually on the third Monday of January, honors the life and legacy of the American civil rights leader. The federal holiday, which falls on January 20 this year, is designated as a national day of service. It encourages Americans to volunteer and help improve their communities....

Kasanka National Park in Zambia, Africa, is home to an unlikely natural phenomenon — the world’s largest mammal migration. Each year, from October to December, millions of straw-colored fruit bats from across Africa converge on this evergreen swamp forest. These nocturnal mammals spend their nights feasting on wild fruits in the surrounding farmlands and their days resting in the forest. This cycle continues daily until January when the bats disperse and return to their respective habitats across the continent....

For many in the United States, Christmas is a time for baking and decorating cookies, finding the perfect gifts for loved ones, and rewatching beloved classics like Elf and Home Alone. However, Christmas traditions vary greatly from country to country. Here are some unique and fascinating holiday customs from around the world....

Hanukkah, one of the most widely observed Jewish holidays, is a joyous eight-day winter festival. It begins on the 25th day of Kislev, the ninth month of the Hebrew calendar. This usually falls between late November and late December. In 2024, Hanukkah celebrations will start at sundown on December 25, coinciding with Christmas Day, and conclude on January 2, 2025. This overlap of the two holidays last occurred in 2005 and will not happen again until 2035....

November is Native American Heritage Month in the United States. It honors the rich cultures, traditions, histories, and contributions of Native American and Alaska Native communities. Here are three inspiring Indigenous leaders who have made meaningful impacts in their respective fields and communities....

NASA’s latest mission takes the search for life to new frontiers — this time to Jupiter’s fourth largest moon, Europa. On October 14, 2024, the Europa Clipper spacecraft launched from the Kennedy Space Center in Florida to uncover the secrets of this distant moon....

The Internet's newest celebrities are two adorable zoo animals from opposite corners of the world. Moo Deng, a baby pygmy hippo, resides in Thailand, while Pesto, an unusually large king penguin chick, calls Australia home....

This summer, scientists returned to the legendary Titanic's resting place in the Atlantic Ocean for the first time in 14 years. The 20-day-long remote imaging expedition ended on August 9, 2024. It was conducted by RMS Titanic Inc., the US company with legal rights to salvage the wreck....

In 79 AD, Italy's Mount Vesuvius erupted, burying the ancient cities of Pompeii and Herculaneum under a thick layer of volcanic debris. Nearly 1,700 years later, in 1752, researchers found over 1,800 rolled papyrus scrolls inside the library of a Herculaneum mansion. The scrolls' exterior was severely charred by the intense heat. But due to the lack of oxygen, the interiors remained well-preserved....

September 11, 2001, began as a serene autumn morning in New York City. However, within a few hours, this tranquility was shattered by the deadliest terrorist attacks in US history. This unprovoked act of violence was planned and executed by members of the Islamic extremist organization al-Qaeda. The tragedy resulted in the deaths of 2,977 innocent people and altered life as we knew it forever....

The Paris 2024 Olympics, held from July 29 to August 11, 2024, showcased incredible athletic talent. From record-breaking swimmers to skateboarding phenoms, these young athletes left an indelible mark on their respective sports. Here are the amazing stories of three of the many breakout stars of the 2024 Summer Games....

The Paris 2024 Olympics will be one for the history books for American gymnastics. The USA men's and women's teams won a total of 10 medals. Their impressive haul included three gold, one silver, and six bronze medals....

Tornadoes can strike the United States year-round, but they are most active from March to July. While they occur nationwide, a region known as "Tornado Alley" is the most susceptible to the twisters. This includes parts of Texas, Oklahoma, Kansas, Nebraska, South Dakota, Indiana, Missouri, Iowa, and Ohio....

The Summer Olympics has traditionally featured 28 sports. But since 2020, host cities have been allowed to add up to six new sports to their Olympic program. The 2024 Summer Olympics, set to kick off in Paris, France, on July 26, will include four extra sports. They are breaking, surfing, skateboarding, and sport climbing....

Renowned wildlife filmmaker and National Geographic Explorer Bertie Gregory is known for capturing rare and unforgettable moments in the animal kingdom. On April 11, 2024, Gregory once again made headlines with his unprecedented footage of a flock of baby penguins bravely diving off a 50-foot (15m) cliff for their first-ever swim in the icy Antarctic waters....

In the mid-1970s, Judith Hernstadt, an avid collector of 18th-century artifacts, bought a set of sketches from a New York antique dealer. One piece, depicting a scene from the Revolutionary War, particularly stood out to her....

After years of reluctance, educational institutions across the United States are finally embracing competitive video gaming, commonly referred to as esports. Since 2018, over 8,600 high schools and about 175 colleges and universities have added esports as an extracurricular activity. And the numbers keep growing....