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Leap seconds have kept our clocks more or less aligned with astronomical time.

It’s Official: Timekeepers Have Gotten Rid of the Leap Second—and Introduced the Leap Hour Instead

Since 1972, experts have added 27 seconds to Coordinated Universal Time to keep it aligned with Earth’s rotation, but it has been an imperfect fix

Backpack has a quiet presence on the river—and his size suggests his peaceful strategy is effective.

Meet This Year’s Chonky Champion of Fat Bear Week: Backpack, a Laid-Back 20-Year-Old Male Who’s a ‘Stoic Presence on the River’

The brown bear, who now weighs between 1,000 and 1,200 pounds after fattening up on salmon, earned his nickname as a cub. When he was little, he enjoyed riding on his mom’s back as she swam across a river

With so many food products now touting added protein, consumers have been left wondering how much is really necessary.

Is More Protein Always Better? Despite the Craze Around the Nutrient, Research-Backed Evidence About Its Benefits Is Complicated

It can be difficult to see through the array of flashy, protein-packed products and determine whether you need more of it—and which foods to consume to get it. We asked health experts about the benefits and drawbacks of chasing protein

The Navier-Stokes problem concerns equations of fluid motion, illustrated here as dye moving in liquid.

A.I. May Have Solved a Longstanding Math Problem With a Million-Dollar Prize. It Ignited a Controversy Over Who Gets Credit

OpenAI announced a solution to the Navier-Stokes problem. But could its A.I. models have used data from two mathematicians working on a similar breakthrough?

GLP-1 drugs, medications that are self-injected to support weight loss and lower blood sugar, helped peptides become mainstream.

Peptides Are All the Rage, Promising Miracle Cures and Makeovers Delivered by Injection. How Did We Get Here?

Experts say the peptide craze is part of a broader phenomenon, as patients look beyond the regulated health system to address problems that doctors have struggled to treat

The Renoir Museum occupies the Impressionist's final home.

Thieves Broke Into a French Museum and Made Off With Renoir Paintings Worth More Than $2.5 Million

Early today, burglars stole four artworks from the Renoir Museum, in the French Riviera, only to drop two of them as they escaped

On August 31, Dale Sanders reclaimed the title of oldest person to complete the Appalachian Trail. He'd previously broken the record in 2017, at age 82.

This 91-Year-Old Man Fell 71 Times While Hiking the Appalachian Trail. He Just Became the Oldest Person to Complete the 2,190-Mile Trek

Dale Sanders finished the hike in just under a year. Nicknamed “Grey Beard,” he’s no stranger to age-defying feats of endurance

Kiana Hall, a 33-year-old marketing specialist, captured a viral clip of Jimothy while out for a walk in Seattle's Ballard neighborhood.

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An Unusual-Looking Raccoon Nicknamed Jimothy Is Winning Hearts Across the Internet for His Short, Round Body

Jimothy has become a local celebrity in Seattle’s Ballard neighborhood and likely has a rare congenital spine condition

The American woodcock has been migrating through the New York City area for, probably, millennia. But in recent years, the bird’s fame has skyrocketed.

These Rotund and ‘Charmingly Goofy’ Birds Are Delighting New Yorkers and Dancing on Social Media. What Is the American Woodcock?

The endearing animals make a pit stop in Bryant Park during their migrations to northern breeding grounds, gathering fans and starring in viral videos

Inside Idiom, which uses mirrors to provide the illusion of infinite length

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You Can See a Swirling Sculpture Made of 8,000 Books at a Library in Prague

Officials are managing an influx of tourists coming to see “Idiom,” a seemingly infinite tunnel of books by the artist Matej Krén, at the Municipal Library

Cloud Dancer is the first shade of white ever selected as Pantone's color of the year.

Pantone’s Color of the Year for 2026 Is a ‘Blank Canvas’ Called Cloud Dancer—or, in Other Words, White

The hue is the first shade of white to receive the title. Officials at the Pantone Color Institute say it’s “a symbol of calming influence in a frenetic society rediscovering the value of measured consideration and quiet reflection”

The Oxford University Press defines "rage bait" as "online content deliberately designed to elicit anger or outrage by being frustrating, provocative or offensive, typically posted in order to increase traffic to or engagement with a particular web page or social media account."

‘Rage Bait,’ Which Describes Online Content Created to Make Us Mad, Is Oxford’s 2025 Word of the Year

The term “has become shorthand for content designed to elicit anger by being frustrating, offensive or deliberately divisive in nature,” according to experts

Many fans have developed parasocial relationships with Taylor Swift and Travis Kelce, pictured here in January 2025 at the AFC Championship Game in Kansas City, Missouri.

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Feel a Connection to a Celebrity You’ve Never Met? Your Bond May Be ‘Parasocial,’ Which Is Cambridge Dictionary’s Word of the Year for 2025

The term is used to describe “a connection that someone feels between themselves and a famous person they do not know,” according to the dictionary

Since June, searches for "67" on Dictionary.com have surged more than sixfold.

The Term ‘67’ Is ‘Impossible to Define.’ It Just Became Dictionary.com’s Word of the Year for 2025

The dictionary says the viral word, which has become particularly popular among members of Gen Alpha, is “meaningless, ubiquitous and nonsensical”

A team of Japanese researchers accepts the Ig Nobel Prize for biology. In their experiments, they found that painting cows with stripes roughly halved the number of fly bites the animals received.

Ig Nobel Prizes Honor Fingernails, Painted Cows and Cacio e Pepe in a Celebration of Strange Science

Ten research projects earned awards for achievements that have made people “laugh, then think”

Nigerian chef Hilda Baci stirs rice in a giant pot in an attempt to set a world record.

This Nigerian Chef Just Set the World Record for the Largest Pot of Jollof Rice

Hilda Baci, whose winning dish weighed more than 19,000 pounds, had previously been awarded a Guinness World Record for the longest cooking marathon

The pads, also known as platters, of giant waterlillies can be up to ten feet in diameter.

How Much Can a Giant Waterlily Hold? See One Carry 183 Pounds Before Sinking, Winning a Social Media Contest

Now in its third year, the Waterlily Weigh-Off invites public gardens and zoos to show off the strength of their aquatic plants

The 102-year-old climber was assisted by his 70-year-old daughter on the journey.

This 102-Year-Old Man Just Became the Oldest Person on Record to Summit Japan’s Mount Fuji

Kokichi Akuzawa is an experienced climber who trained for his journey up the mountain by walking for one hour every morning

When Dan Pelzer died on July 1, he had logged 3,599 books that he’d completed between 1962 and 2023.

This Man Kept a Meticulous List of All 3,599 Books He’d Read Since 1962. When He Died, His Family Published It Online

Dan Pelzer, who died on July 1 at age 92, is having a viral moment after his relatives shared his 109-page log featuring every single book he finished over more than 60 years

Mattel collaborated with leading diabetes organization Breakthrough T1D to design the first Barbie doll with Type 1 diabetes.

Meet the First Barbie With Type 1 Diabetes. Her Colorful Accessories Showcase the Tools People Use to Treat the Chronic Disease

The new doll boasts a pink continuous glucose monitor to track blood sugar levels and a pink insulin pump

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