Short Phone Breaks May Be a Good Idea

College students look at their phones while sitting in a lecture hall.

Short Phone Breaks May Be a Good Idea

A new study shows that one-minute phone breaks may help students focus.

College students look at their phones while sitting in a lecture hall.

© silverkblack/stock.adobe.com

Should cell phones be allowed in classrooms? The answer to that question has been debated for years. But a new study suggests that taking very short “phone breaks” could help increase students’ test scores.

The study took place over the course of a semester (about 15 weeks) at a U.S. university. Some of the participating students were given one-, two-, or four-minute breaks during their classes. They were allowed to use their phones during these breaks. The other students were the “control group.” They were also given breaks but weren’t allowed to use their phones. Instead, they could ask questions during this time.

The researchers found that the students who were allowed to take phone breaks were less likely to look at their phones when the class was going on. These students also did better on tests than the students in the control group.

Researchers also wanted to know if the length of the phone break mattered. They found that the one-minute phone break was more effective than the longer phone breaks.

Why are shorter breaks best? Researchers think one minute is just long enough to read and reply to a single text without getting into a long texting conversation.

But this doesn’t necessarily mean that teachers should let students take short phone breaks. Other studies have found that even short breaks make it harder for students to remember what they learned, resulting in lower grades.

The debate continues!

Did You Know?

As of September 2024, five U.S. states have passed laws banning or limiting cell phone use in public schools. Those states are Florida, Indiana, Louisiana, South Carolina, and California.

Several countries have also banned or limited the use of phones in schools. These include Colombia, Italy, France, Bangladesh, and Singapore.

Map of the United States highlighting five states where cell phone use is limited in schools.

© skynesher—E+/Getty Images, © Peter Hermes Furian/stock.adobe.com; Photo illustration Encyclopædia Britannica, Inc.

The Place with No Wi-Fi

A barn is dwarfed by the large white telescope that sits near it.

David Brossard (CC BY-SA 2.0)

The Robert C. Byrd Green Bank Telescope is so large that it makes this barn look small.

In the town of Green Bank, West Virginia, Wi-Fi and cell phone use are against the law. Green Bank is the home of the Robert C. Byrd Green Bank Telescope, or GBT, which is so sensitive that it can pick up data from spacecraft that are exploring faraway locations in our solar system. But the GBT’s sensitivity also means that wireless signals can interfere with its work.  

Get a Brain Boost!

A teenager sleeps on a bed with a phone on his chest and while wearing headphones.

© V.R.Murralinath/stock.adobe.com

There’s some evidence suggesting that cell phone breaks could boost our brainpower. There’s also evidence that these breaks do just the opposite.

One thing that’s almost sure to benefit our brains is sleep. How much sleep do we need, and why do we dream? You can learn more about sleep at Britannica.

WORD OF THE DAY

somnolent

PART OF SPEECH:

adjective

Definition:

: inclined to or heavy with sleep : drowsy

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New Emojis Have Us Smiling

Sample emoji designs including a tired face, a thumbprint, a purple splat, a root vegetable, a dead tree, a harp, a shovel, and a flag.

New Emojis Have Us Smiling

Eight new emojis are coming to phones everywhere. Do you approve?

Sample emoji designs including a tired face, a thumbprint, a purple splat, a root vegetable, a dead tree, a harp, a shovel, and a flag.

© 2022 Emojipedia, emojipedia.org

These are the sample designs for the eight newly approved emojis that will soon be available on phones everywhere.

There’s good news for people who love to sprinkle their messages with emojis. Eight new emojis are coming to phones and computers worldwide. The designs, which include a purple splat and a tired face, are set to hit devices in 2025.

Emojipedia recently unveiled its new sample designs for the emojis, which were then approved by Unicode Consortium, the organization in charge of maintaining global emoji standards. They’re called sample designs because Apple, Google, and other tech companies will be allowed to create specific versions for their devices.

The emojis include a tired face with bags under its eyes, a human fingerprint, a purple paint splatter, a root vegetable, a dead tree, a small harp, a shovel, and the flag of Sark (an island in the English Channel).

As with all emojis, users will be able to interpret and apply them however they wish. But at least one of the new designs has a purpose. The dead tree is meant to raise awareness about drought, which is one effect of climate change.

“Drought is a natural part of [the] climate cycle, [and] for millions of years trees have adapted to these harsh conditions,” said Brian Baihaki, who submitted the design to Unicode for approval. “But the climate is changing, [and] drought [has] become more frequent, severe, and even spread to other places in [a] short amount of time.”

But the tired face may end up being the most popular of the new lineup, having won “Most Anticipated Emoji” at the World Emoji Awards in 2024 with more than 62 percent of the vote. The paint splatter came in second, followed by the shovel.

Fun Fact

The world’s most popular emoji is the laughing face with tears in its eyes, followed by the red heart.

A large number of emojis are featured, with a focus on the red heart and the laughing face.

© streptococcus/stock.adobe.com; Animation Encyclopædia Britannica, Inc.

Why Some Countries Are Smiley-er

Fifteen smiling faces of different ages and ethnicities.

© oneinchpunch, Wayhome Studio/stock.adobe.com, © Alessandro Biascioli/Dreamstime.com, © Morsa Images—DigitalVision/Getty Images; Photo composite Encyclopædia Britannica, Inc.

People tend to smile more in some countries than in others, but why? One study suggested that whether a country is “smiley” might depend on its history of immigration.

Researchers noticed that in countries that have historically had high levels of immigration, people smile more. They decided to look for evidence that this is true.

In their study, the researchers asked 726 people in nine countries to answer questions related to when it’s appropriate for someone else to smile. The countries included those with high levels of immigration, like the United States, and those with lower levels of immigration, like Japan. Researchers compared the results from each country with that country’s history of immigration.

Based on the survey results, the researchers concluded that smiles are more common in countries that have taken in more immigrants over the past 500 years. The reason? Scientists believe that when everyone in a population does not speak the same language, people find other ways to communicate—like smiling.

Keep It Short!

A text saying “You’re old” appears on a smartphone screen and a text saying “I know” appears on the screen of an older phone.

© Andreykuzmin, Wittayapapa/Dreamstime.com; Animation Encyclopædia Britannica, Inc.

If you have a phone, you might be a frequent texter. You can learn more about the history of text messages—and maybe pick up some new texting abbreviations—at Britannica. TTYL!

WORD OF THE DAY

denote

PART OF SPEECH:

verb

Definition:

: to show, mark, or be a sign of (something)

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Nintendo Opens a Museum

The exterior of the Nintendo Museum.

Nintendo Opens a Museum

Visitors can learn about the company’s history and play games with giant controllers.

The exterior of the Nintendo Museum.

© Richard A. Brooks—AFP/Getty Images

The Nintendo Museum is located in an old Nintendo factory near Kyoto, Japan.

If the names Zelda and Super Mario Bros. mean anything to you, you’re probably a Nintendo fan. Now, the video game company that has entertained generations of gamers has opened the Nintendo Museum.

The museum opened on October 2 in Uji, Japan, in the building complex once occupied by the company’s factory. Visitors can learn about Nintendo’s long history, which began in 1889 when the company made playing cards, and see displays of nearly all the company’s products. In addition to massive hits like Super Mario Bros. and Donkey Kong, Nintendo shows off prototypes (models) of products that never made it to stores. Visitors also get to see what Nintendo’s famous games from decades ago would be like if they were made using modern technology.

Four people play video games using giant controllers.

© Richard A. Brooks—AFP/Getty Images

Nintendo Museum visitors play Super Mario World, a game from the 1990s, using giant video game controllers.

But a video game museum wouldn’t be very notable if visitors didn’t get to play games. The museum offers several gaming experiences, some of which use brand-new games. In one experience, visitors get to go back in time, in a sense, when they try playing games using older consoles. In another, visitors get to play classic games using controllers so large they require two people to work together.

Two people play a video game using a giant controller.

© Richard A. Brooks—AFP/Getty Images

Visitors to the Nintendo Museum play Super Mario 64 using a giant controller.

It’s tempting to think about spending all day playing games at the Nintendo Museum. But that won’t be possible. Each visitor gets 10 digital coins they can use to play the games, and it’s not possible to buy additional coins. That means visitors will need to make some tough decisions about what they’d like to play.

If you get a chance to go to Japan and you’re interested in visiting the museum, be sure to plan ahead. Visitors need to go to the museum website and enter a lottery to get in—and it can take months to be chosen for admission. So far, though, the reviews of the museum have been positive. It might just be worth the wait.

Did You Know?

Gamers are getting older. In 2004, the average age of a player was 29. In 2024, the average age was 36.

An older woman and a young girl play a video game together.

© Dragonimages/Dreamstime.com

Cool Museums

Guilhem Vellut (CC BY 2.0); Dan (twiga-swala) (CC BY-SA 2.0); “Lucy in the Field with Flowers”, Museum Of Bad Art, www.MuseumOfBadArt.org; “My Three Suns”, Museum Of Bad Art, © Lane Turner—The Boston Globe/Getty Images; © Money Sharma—AFP/Getty Images; © Donald Miralle/Getty Images Entertainment

Have you ever been to a museum? You might know about art, history, or science museums. But a museum can be about anything, as long as it contains interesting objects.

Here’s a list of some unusual museums you might want to explore. The slideshow above features a photo of each one!

Cup Noodles Museum
Yokohama, Japan

It’s easy to make Cup Noodles instant ramen. You just add boiling water to the dried noodles and seasoning in the cup. Visitors to the Cup Noodles Museum get to learn the secrets to the company’s success. There’s also a tasting room!

International UFO Museum and Research Center
Roswell, New Mexico

In 1947, a flying object crashed in Roswell, New Mexico. Though the object was later identified as a military aircraft, some people believe it actually came from outer space—and may have been occupied by aliens. Visitors to the museum can explore the possibilities. 

Museum Of Bad Art (MOBA)
Dorchester, Massachusetts

Most art museums have art that’s good—or, at least, good enough for experts to think it deserved to be displayed. This Dorchester, Massachusetts, museum celebrates art that most museums would reject.

Sulabh International Museum of Toilets
Sulabh, India

Toilets didn’t always exist—and early toilets were very different from what we have today. So how did people take care of business? The Museum of Toilets is dedicated to exploring this question.

Isla Mujeres Underwater Museum of Art
Cancun, Mexico

Located in the waters off the coast of Cancun, this underwater museum is not that easy to reach. Visitors need to board a glass-bottom boat or put on scuba or snorkeling gear and dive in. The museum’s hundreds of life-sized sculptures are worth the trip.

Amazing Anime

A still features a character from the anime show Dragon Ball Z.

© Toei Animation 2022

The anime TV series Dragon Ball Z led to books, movies, and video games.

In addition to being a video game pioneer, Japan also invented a style of animation called anime. You can read more about the history of anime at Britannica.

WORD OF THE DAY

diversion

PART OF SPEECH:

noun

Definition:

 : something that people do because it is enjoyable, entertaining, or pleasant

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New Paint Can Keep Cars Cool

Heat lamps are pointed at two cars as a computer measures the cars’ temperatures.

New Paint Can Keep Cars Cool

Auto company Nissan has developed paint that helps prevent cars from heating up on hot days.

Heat lamps are pointed at two cars as a computer measures the cars’ temperatures.

© Nissan

Two cars, one with the cooling paint and one with traditional paint, are heated as their temperatures are monitored.

If you’ve ever gotten into a car on a hot, sunny day, you know it’s not a pleasant experience. A sweltering car is not only uncomfortable but also potentially unsafe. Now, auto company Nissan Motor Co. has come up with new automotive paint that can keep a car’s exterior and interior dramatically cooler. 

Nissan tested the paint at Tokyo’s Haneda Airport, which receives abundant sunlight, by parking two cars next to each other—one coated with the cooling paint and one coated with regular auto paint. At the end of the test, the vehicle with the cooling paint was up to 22 °F (12 °C) cooler on the outside and up to 9 °F (5 °C) cooler on the inside than the other vehicle.

Two white cars sit side by side in a sunny parking lot.

© Nissan

Two Nissan vehicles were tested in a sunny part of Haneda Airport in Tokyo, Japan.

The paint contains two kinds of particles that help it stay cool. One particle helps prevent the paint from heating up by reflecting near-infrared wavelengths of light. The other produces electromagnetic waves that direct energy away from the car and into space.

© Nissan

What happens when the new paint is put to the test?

Cooling paints, which are typically white, are already used on rooftops and some other surfaces. But these paints are usually much thicker than other paints, making it impossible to put them on cars. Nissan’s paint is thinner than most cooling paints but still thicker than most auto paints.

Nissan hopes to improve its paint, making it thinner—and possibly making it available in colors other than white.

Did You Know?

The world’s most popular car color is white.

A white car surrounded by other white cars asks if there are any cars with any personality.

© FATIR29/stock.adobe.com; Illustration composite Encyclopædia Britannica, Inc.

Driving with the Sun?

A futuristic gray car with three wheels and doors that lift up.

© Aptera

Aptera Motors makes a solar car that can also be charged with electricity.

It’s clear that cars absorb plenty of sunlight. So why aren’t all cars solar powered?

Today’s solar panels need to be fairly large. If they were any smaller, they wouldn’t be able to harness the amount of solar energy needed to be converted into a decent amount of electricity. Most cars don’t have enough surface area for large panels. 

Solar-powered cars do exist, and many automakers are developing new models. But currently, solar power can’t power a car all on its own. With most solar-powered cars, the solar energy helps to boost a power source, such as a battery.

Charged Cars

Several cars are parked and plugged in.

© Baloncici/Dreamstime.com

Electric cars are becoming more and more common—and they’re not new. Did you know that the first electric cars were built in the 1880s? Learn more about electric vehicles at Britannica!

WORD OF THE DAY

novelty

PART OF SPEECH:

noun

Definition:

: something that is new or unusual : something novel

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February 26, 2026
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Young Heroes Honored

Gloria Barron with a large bird next to the logo for the hero awards.

Young Heroes Honored

Gloria Barron Prize for Young Heroes honors young people who are making the world a better place.

Gloria Barron with a large bird next to the logo for the hero awards.

Gloria Barron Prize for Young Heroes

The Gloria Barron Prize for Young Heroes was named for Gloria Barron (seen here), who founded a nature museum. The museum is full of objects that can be touched, making it accessible to people who are blind.

All over the planet, kids and teens are finding creative ways to help other people and the environment. The Gloria Barron Prize for Young Heroes highlights a few notable examples by honoring 25 young people in North America who are making the world a better place. The top 15 honorees each win $10,000, which they can put toward their service work or a college education.

Here are a few of this year’s inspiring winners.

A teen stands in front of snowy mountains.

Gloria Barron Prize for Young Heroes

Arya Gurumukhi, age 15, Texas

Arya developed improvements to an existing technology called the Bionic Leaf. A solar-powered Bionic Leaf system uses a photosynthesis-like process to produce a fuel from water, sunlight, and bacteria. Arya believes this fuel could be an alternative to fossil fuels, which contribute to climate change.

A teen poses while holding a camera.

Gloria Barron Prize for Young Heroes

Charlotte Rosario, age 17, California

Charlotte founded an organization called the Community Photobooth, in which a group of young photographers invite families to come together for photo shoots. The money earned during the photo shoots is used to support various causes. So far, the Community Photobooth has held more than 550 photo shoots and raised more than $40,000. 

A teenager poses in front of pine trees.

Gloria Barron Prize for Young Heroes

Clelia Poujade, age 17, Illinois

Inspired by her love of cooking, Clelia started Hands Together to Feed Chicago (HTTFC), an organization that cooks nutritious meals for people in need, using Clelia’s own recipes. Made up of volunteers, the group has cooked and served over 8,000 from-scratch meals and desserts for guests at shelters in and around Chicago.

Closeup of a smiling teen.

Gloria Barron Prize for Young Heroes

Genshu Price, age 16, Hawaii

Genshu’s nonprofit organization, Bottles4College, recycles cans and bottles and uses the proceeds to help students in Hawaii attend college. Since 2021, Bottles4College has recycled more than 1.5 million cans and bottles, preventing 100,000 pounds of trash from entering landfills. In 2023, Hawaii high school seniors received the first Bottles4College scholarships, totaling nearly $22,000.

A smiling teen sits in a TV studio.

Gloria Barron Prize for Young Heroes

Heman Bekele, age 15, Virginia

Heman developed soap that helps treat skin cancer. The soap contains a cancer-fighting drug that helps repair damaged cells. It also contains nanoparticles that keep the drug on the skin after the soap is rinsed off. Heman’s soap costs just 9 dollars per bar, far less than conventional skin cancer treatments.

Side by side photos of a girl and a boy smiling.

Gloria Barron Prize for Young Heroes

Nirbhuy Arun & Alexis Nicholson, ages 9 and 10, Washington

Nirbhuy and Alexis co-founded an organization called Kids for Urban Trees, which has planted more than 300 trees at schools, parks, and low-income housing complexes. The pair hope to address the urban heat effect, a phenomenon in which a lack of trees and an abundance of heat-absorbing surfaces like parking lots cause cities to be a good deal warmer than other areas.

A smiling teen poses.

Gloria Barron Prize for Young Heroes

Sebastian Tan, age 16, Pennsylvania

Sebastian is the founder of OutsideConnection, an organization that helps reentrants (people who are leaving prisons after serving their time) find jobs and rebuild their lives. OutsideConnection has an online hiring platform that uses AI-powered software to help reentrants find jobs that fit their skills. The organization has helped more than 10,000 reentrants so far.

NEWS EXTRA

Indigenous Peoples’ Day

Indigenous people dancing, admiring beadwork, posing, using a sled, celebrating, and blowing into a shell.

© Joseph Prezioso—AFP, Rosem Morton—The Washington Post, Justin Lewis—Stone/Getty Images, © Jeffrey Isaac Greenberg 8+, Philip Scalia/Alamy; Photo composite Encyclopædia Britannica, Inc.

October 14 is Indigenous Peoples’ Day in the United States. It’s a day to honor the history, the resilience, and the many cultures and traditions of American Indians.

Although it’s not a federal holiday, Indigenous Peoples’ Day is observed in several U.S. states and cities. U.S. president Joe Biden first issued a proclamation recognizing Indigenous Peoples’ Day in 2021 and has done so every year since then.

Indigenous Peoples’ Day occurs the second Monday in October, the same day as Columbus Day, which has been a federal holiday since 1937. One reason for this is to recognize that American Indians were in the Americas for thousands of years before Italian explorer Christopher Columbus first set foot there. Another reason is to acknowledge that Columbus and other Europeans were responsible for the mistreatment and deaths of thousands of Indigenous peoples.

“This day is about reclaiming histories,” said Kyle Mays, an associate professor of American Indian Studies at the University of California, Los Angeles, told the Associated Press. “It’s acknowledging the history of dispossession [loss of land and culture] and violence against Indigenous people.”

One way to observe Indigenous Peoples’ Day is to learn more about Indigenous peoples. With 574 federally recognized tribes in the United States, each with its own history, culture, and traditions, it can be hard to know where to start. One idea is to start where you live. If you’re in the United States, find out which Indigenous peoples live or lived where you now live and learn about their history.

Did You Know?

If octo means “eight,” why is the 10th month of the year called October? 

In the ancient Roman calendar, there were only 10 months in the year—March through December—making October the eighth month. Later, when two extra months were added to the calendar, October became the 10th month.

Two men in ancient Rome are angry at another man who says he’s adding two months to the calendar.

© drawlab19/stock.adobe.com; Illustration composite Encyclopædia Britannica, Inc.

Fat Bear Week: The Results Are In

Twelve individual photos of brown bears.

E. Johnston, M. Carenza, F. Jimenez, T. Carmack, C. Cravatta/U.S. National Park Service; Photo composite Encyclopædia Britannica, Inc.

Here are the 12 bears that competed in this year’s Far Bear Week. Each bear has a number as part of its name.

In the bear universe, autumn is all about eating as much as possible. Since bears don’t eat or drink during their months-long winter hibernation, putting on weight during autumn is a matter of survival. 

In Alaska’s Katmai National Park, the brown bears eat tons of salmon, which is rich with essential fat and nutrients. The rangers at Katmai National Park celebrate these survival instincts each autumn during Fat Bear Week. In the time leading up to the contest, the rangers select several bears to compete. Throughout Fat Bear Week, the public votes for their favorites in a series of matchups until the winner is chosen. 

This year’s Fat Bear Week took place October 2–8. The contest came down to a matchup between 128 Grazer and 32 Chunk—the same final matchup as 2023. 

And the winner is…

A brown bear in a wooded area.

M. Carenza/U.S. National Park Service

128 Grazer, who won Fat Bear Week in 2023, took the trophy again this year!

Winter Break

A brown bear peers out of its den, which is embedded in snow.

© byrdyak/stock.adobe.com

Bears aren’t the only animals that hibernate. Squirrels, snakes, skunks, and many other animals also go dormant in the winter. That doesn’t mean they sleep for months, though. Contrary to popular belief, hibernation isn’t just a season-long nap. 

Learn more about hibernation at Britannica!

WORD OF THE DAY

beneficent

PART OF SPEECH:

adjective

Definition:

 : performing acts of kindness and charity

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In Case You Missed It

Figure skater Alysa Liu felt happy and confident at the 2026 Olympics. She skated off with a gold medal!
March 5, 2026
An all-women ranger team protects endangered animals on the Indonesian island of Sumatra.
February 26, 2026
Nima Rinji is showing the world the powerful spirit of the Sherpa people as he climbs the world’s tallest mountains.
February 19, 2026
Life wouldn’t be as fun without the work of these three inventors.
February 12, 2026

Earth Gets a Mini-Moon

An illustration shows Earth, the Moon's path of orbit around Earth, and the path 2024 PT5 is expected to take partway around Earth and back into the solar system.

Earth Gets a Mini-Moon

An asteroid has entered a path of orbit around Earth. Scientists are calling it a temporary mini-moon.

Tony Dunn

In this video, the path of Earth’s moon is shown in white, while the path of the 2024 PT5 (the mini-moon) is in red.

Unlike some of its neighbors in the solar system, Earth has just one moon. But for a brief time, our planet is also being orbited by an asteroid that scientists are calling a mini-moon.

The asteroid, which is named 2024 PT5, entered Earth’s orbit in late September after being captured by our planet’s gravity. It’s expected to remain until November 25, for a total stay of about 56 days. At 33 feet (10 meters) long, 2024 PT5 is about the size of a school bus, and scientists say there’s no danger it will collide with Earth.

But will 2024 PT5 give the Moon a run for its money? Not really, scientists say. Most people won’t be able to see it in our sky. 

“The object is too small and dim for typical amateur telescopes and binoculars,” astronomer Carlos de la Fuente Marcos told Space.com. Marcos co-wrote a study about the asteroid. “However, the object is well within the brightness range of typical telescopes used by professional astronomers.” 

2024 PT5 won’t even be around long enough to complete a full orbit around Earth. Eventually, it will go back out into space and join an asteroid belt that’s orbiting the Sun.

Scientists say “mini-moon events” aren’t too unusual. In February 2020, scientists detected another asteroid that had begun to orbit Earth in 2017. It remained in orbit for more than a year after it was spotted. That was what scientists called a “long mini-moon episode.” Unlike long episodes, which occur only every 10 or 20 years, short episodes (like 2024 PT5’s visit) happen several times each decade.

Did You Know?

Earth and the Moon in space, with Earth saying, I feel like we’re growing apart.

NASA/JPL-Caltech/ESA; Photo illustration Encyclopædia Britannica, Inc.

The Moon is moving farther away from Earth, at a rate of 1 inch (2.5 centimeters) a year.

Protecting Earth from Asteroids

A spacecraft is approaching the asteroid Dimorphos and another asteroid.

NASA/Johns Hopkins/APL

In 2022, NASA crashed a spacecraft into the asteroid Dimorphos, as shown in this illustration.

It’s extremely rare for a large asteroid to hit Earth. According to NASA, it happens about every 2,000 years or so. Still, scientists are working on ways to reduce the threat of these space rocks.

In recent experiments, scientists staved off fake asteroids by hitting them with X-ray radiation. The heat from the radiation created vapor that pushed the asteroids away.

In 2022, NASA purposely crashed a spacecraft into an asteroid called Dimorphos, changing the asteroid’s path. But while that experiment was successful, scientists say intentional collisions work only on small asteroids. The X-ray technique might be another option for larger asteroids.

Space Rocks

Illustration of the solar system and the asteroid belt, with a large asteroid in the foreground.

ESA/ATG medialab

With a diameter of about 580 miles (940 kilometers), the asteroid Ceres is large enough to also be called a dwarf planet. The illustration above shows our solar system’s asteroid belt. Ceres is the largest asteroid shown.

What are asteroids, and why should we care about them? Learn more about space rocks at Britannica!

WORD OF THE DAY

ephemeral

PART OF SPEECH:

adjective

Definition:

: lasting a very short time

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In Case You Missed It

Figure skater Alysa Liu felt happy and confident at the 2026 Olympics. She skated off with a gold medal!
March 5, 2026
An all-women ranger team protects endangered animals on the Indonesian island of Sumatra.
February 26, 2026
Nima Rinji is showing the world the powerful spirit of the Sherpa people as he climbs the world’s tallest mountains.
February 19, 2026
Life wouldn’t be as fun without the work of these three inventors.
February 12, 2026

Why Some Cats Don’t Hunt

A rat nuzzles against a cat without fear.

Why Some Cats Don’t Hunt

A new study shows why some cats try to catch their dinner and others don’t.

A rat nuzzles against a cat without fear.

© Jagodka/Dreamstime.com

Cats are natural-born hunters, but not all cats actually hunt. A new study shows that whether a cat hunts or not depends partly on its personality.

The ability to hunt is part of a cat’s instinct, meaning cats are born knowing how to hunt. Many cats will hunt even if they’re well fed by humans—so hunger isn’t always related to why a cat goes looking for prey. This made a team of scientists wonder why some cats don’t hunt.

In the study, which took place in France, scientists surveyed 2,508 people whose cats spend at least part of the time outside. The scientists found that only some of these cats brought prey home regularly. The difference between the cats that hunted and the cats that didn’t hunt had nothing to do with age or gender. Instead, it was related to the cats’ personalities. Cats that were more curious, adventurous, or dominant (bold and aggressive) were more likely to be hunters. Cats that were friendlier or shyer were less likely to be hunters.

The scientists also found that cats that spent more time outdoors were more likely to hunt. Also, cats living in rural or suburban areas were more likely to hunt than cats living in cities.

Cat owners know that different cats have different personalities. But scientists only recently considered the idea that a cat’s personality might be related to whether it hunted or not.

“[This study] is super interesting because we’re in an age where we’re spending a lot more time studying cats and cat personalities, and kind of finding all the nuances to the behavior,” cat behaviorist Wailani Sung told USA Today. Sung helped make the 2022 Netflix documentary Inside the Mind of a Cat.

Did You Know?

Some people believe that orange cats are particularly friendly. But so far, no study has shown that the color of a cat’s fur is related to its personality.

An orange cat becomes aggressive while sitting in its owner’s arms.

© TinyBell, jongjawi/stock.adobe.com; Animation Encyclopædia Britannica, Inc.

How Wildcats Became House Cats

A member of the wildcat species that’s thought to be the direct descendent of house cats next to a house cat that looks similar.

© EcoView/stock.adobe.com, © Vladographer/Dreamstime.com; Photo composite Encyclopædia Britannica, Inc.

Scientists think Felis silvestris lybica (left) is the wildcat species that evolved into the modern house cat (right).

It’s hard to believe house cats are related to lions and tigers—until you consider that the felines we love to cuddle also have strong hunting instincts. House cats evolved from a species of wildcat…but how?

By studying the DNA of both wildcats and domestic cats (house cats), scientists concluded that domestic cats evolved from a wildcat species called Felis silvestris lybica about 10,000 years ago in an area of the Middle East that’s often called the Fertile Crescent. You might know that the Fertile Crescent is one part of the world where people first stopped roaming around, built villages, and began growing food.

But cats probably weren’t tamed in the same way dogs and some other animals were. Since cats don’t usually like to be told what to do, scientists believe it’s more likely the animals chose to live with humans, instead of the other way around. This happened after humans began to store food. The stored food attracted mice—which cats could hunt. A cat could also make a nice meal out of food scraps humans threw away.

The calmer, friendlier wildcats were more likely to settle around humans. Over time, these cats evolved into house cats.

When Animals Relax

A sculpture of an ancient Egyptian man using a plow led by two oxen.

The Metropolitan Museum of Art, New York City, Gift of Valdemar Hammer Jr., in memory of his father, 1936 (36.5), www.metmuseum.org

 Domestic animals helped ancient Egyptian farmers like the one shown in this model. The model was made in ancient Egypt between 1981 BCE and 1885 BCE.

Humans have domesticated, or tamed, many animal species. But why? And how would our lives be different if there were no domesticated animals?

You can learn more at Britannica.

WORD OF THE DAY

feral

PART OF SPEECH:

adjective

Definition:

used to describe an animal (such as a cat or dog) that has escaped and become wild

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Two Teens Solve Pythagorean Puzzle

Two teen girls pose with several men and women in front of balloons while holding gift bags.

Two Teens Solve Pythagorean Puzzle

Calcea Johnson and Ne’Kiya Jackson were in high school when they came up with a new proof for the Pythagorean theorem.

Two teen girls pose with several men and women in front of balloons while holding gift bags.

Courtesy of AT&T

Calcea Johnson (center left) and Ne’Kiya Jackson (center right) were honored for their achievement at the 2023 Essence Festival.

Two high school students made headlines when they solved a math problem that’s stumped many mathematicians. Their feat even caught the attention of former NBA superstar Charles Barkley, who pledged a million dollars to the school the students attended.

In 2022, Calcea Johnson and Ne’Kiya Jackson were seniors at St. Mary’s Academy in New Orleans, Louisiana, when they entered a schoolwide math contest related to the Pythagorean theorem. The Pythagorean theorem says that the sum of the squared lengths of the two shorter sides of a right triangle is equal to the square of the length of the longer side. So if you know the lengths of two sides of a right triangle, you can use the theorem to figure out the length of the third side. Here’s how the equation is written:

a2 + b2 = c2

A theorem is a rule that can be proven to be true, and the Pythagorean theorem has been proven a few hundred times, using algebra and geometry. The contest asked for a new way to prove the theorem. Another way to say this is that it asked for a new proof of the theorem.

For two months, Johnson and Jackson used nearly every spare minute to work on the problem. Johnson’s mom said the pair’s work took up 20 or 30 notebook pages as they tried, failed, and tried again. Their persistence paid off. Johnson and Jackson came up with a new proof, but they didn’t use algebra or geometry to do it. They used trigonometry, another kind of math. Very few others have been able to prove the Pythagorean theorem using trigonometry. 

“There’s nothing like it—being able to do something that people don’t think that young people can do,” Johnson told New Orleans news station WWL-TV. “It’s usually, like, you have to be an adult to do this.”

Johnson and Jackson later presented their proof at a meeting of the American Mathematical Society. They were the only two high school students who presented.

Their remarkable achievement was widely reported. One of the people who heard about it was NBA player-turned-commentator Charles Barkley, who was impressed with both the young mathematicians and their school. In 2024, Barkley sent $100,000 to St. Mary’s. He’s promised to give another $900,000 to the school over the next 10 years.

Did You Know?

Charles Barkley has given millions of dollars to causes that are important to him, particularly education. Barkley, who signed with the NBA in 1984 at age 21, has since made a fortune doing commercials and sports commentary. He says he wants to give back.

“I can’t believe [how lucky I am in] my life,” he once told journalist Graham Bensinger. “I’ve got to bring as many people along with me for this ride as possible. I’m going to try to help as many people as I possibly can.”

Charles Barkley holding a microphone as a commentator and the younger Barkley in uniform dribbling a basketball.

© Megan Briggs/Getty Images, © Sports Images/Dreamstime.com; Photo illustration Encyclopædia Britannica, Inc.

Former NBA player Charles Barkley is both a commentator and a philanthropist.

Cookie Math

Cookie Monster eats a cookie as he says C is for cookie and circumference in front of a blackboard full of equations

© Georg Wendt—picture alliance/Getty Images, © Andrew Ink/stock.adobe.com; Photo illustration Encyclopædia Britannica, Inc.

Since today’s top story was about math, it’s fitting that October 1 is National Homemade Cookie Day in the United States. After all, math is a big part of baking. (So is chemistry, but that’s a story for another day!)

If you’re a baker, here are a few cookie calculations that might come in handy.

I’ll Take 15 Dozen, Please

If you have a recipe for two dozen cookies and you want to make 15 dozen cookies, you can use a mathematical process called the Baker’s Percentage to figure out how much of each ingredient you’ll need.

Cookie Crisp (or Not)

A cookie’s texture depends on the ratio of some of its ingredients. If you use more butter and less flour, you end up with crisper cookies. If you use more brown sugar and less white sugar, you end up with chewier cookies. That’s because brown sugar contains molasses.

No Chips, No-Go

There’s nothing worse than getting a chocolate chip cookie without any chips in it! But if a baker knows how many cookies they’re making and the number of chips they’re adding, they can use a mathematical formula to calculate the probability (chance) that any random cookie will contain a certain number of chips.

When Computers Were People

Katherine Johnson writes at a desk that holds an adding machine and several papers.

NASA

This 1960s photo shows “human computer” Katherine Johnson hard at work at Langley Research Center.

In September, a group of women once known as “human computers” received the Congressional Gold Medal, America’s highest award for citizens. Working for NASA in the 1950s and 1960s, these women performed handwritten calculations that helped the space agency develop its space program. 

At the time, white men received most of the credit for NASA’s success. The contributions of the human computers remained largely unknown until their story was told in a 2016 movie called Hidden Figures.

You can learn more about many of the human computers at Britannica. Click the link to read about Katherine Johnson.

WORD OF THE DAY

conundrum

PART OF SPEECH:

noun

Definition:

: a confusing or difficult problem

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A Dog’s Job

A black and white border collie runs through a burned forest wearing a vest from which seeds are spilling.

A Dog’s Job

Dogs are doing important things for the ecosystem, just by running around with seed-filled backpacks.

A black and white border collie runs through a burned forest wearing a vest from which seeds are spilling.

© Martin Bernetti—AFP/Getty Images

In Chile, this dog and others helped spread seeds to regrow forests. There’s now a similar effort in the UK.

Wolves once roamed around England, unknowingly spreading wildflower and grass seeds that stuck to their fur and paws and fell off miles away. This seed-spreading was important for England’s biodiversity. But since wolves are long gone from that part of the world, their canine cousins—dogs—are pitching in.  

In a town called Lewes, people are putting seed-filled backpacks on their dogs before heading to the Railway Land Nature Reserve. The backpacks are full of holes, so the dogs spread the seeds as they roam freely around the reserve with their humans close by. Project manager Dylan Walker says the dogs walk four times the distance humans do and often squeeze into places where humans don’t go. 

Wolves once unknowingly did this work, often roaming 12 miles (20 kilometers) every night. But wolves became extinct in Britain in the 1700s.

“I signed up [for the project] because it sounded like such a good fit,” dog owner Cressida Murray told the Guardian. “I was asked to place a harness on my chocolate cocker spaniel called Bertie, and he ran around spreading seeds like wolves used to do many years ago.”

Walker got the idea for the project after hearing about a similar project that took place in Chile in 2019. After fires destroyed many acres of forest and drove many animals out, two women tied seed-filled satchels to their three dogs and let them run around the area. Even though the dogs had no idea what they were doing, their work helped turn some charred land green again.

In England, the dogs’ work is paying off, Walker says.

“We’ve already started to see seed germination in some areas, but most of the seeds that have been distributed by the dogs are perennials, which take a couple of years to establish and flower, so hopefully next year we’ll see some clearer results,” he told the Guardian.

Did You Know?

Animals can spread seeds in many ways. Mammals, like the fox in the photo, catch seeds in their fur and deposit them in other locations. Monkeys, bears, lemurs, and birds eat fruit and deposit the seeds in their waste.
Seeds are embedded in a fox’s fur as it lies down in tall grass.

© Tambako the Jaguar—Moment Open/Getty Images

England’s Wolves

A map of Great Britain and Ireland with England colored in red and a silhouette of a howling wolf.

© Doddis, Denys Holovatiuk/Dreamstime.com; Composite illustration Encyclopædia Britannica, Inc.

Wolves lived in England for about 10,000 years, helping to control the island’s population of deer and boar. But as humans cleared England’s forests, wolves lost their habitat. By around 1000 CE, the wolf population had begun to decline.

Humans didn’t value wolves. In fact, they saw them as a threat to both people and livestock. According to historians, kings granted land to people who promised to get rid of the wolves, by hunting them or even burning their forest homes. 

By the middle of the 1700s, the wolves were gone. 

Wolves in the World

© Film Studio Aves—Creatas Video/Getty Images

Wolves once lived in most of the Northern Hemisphere. Today, they live in about two-thirds of their former range. 

You can learn more about wolves at Britannica.

WORD OF THE DAY

propagate

PART OF SPEECH:

verb

Definition:

technical : to produce (a new plant)

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Top Chef Says Goodbye

Chef Cristeta Comerford wears a chef uniform and stands in a kitchen surrounded by Michelle Obama and four other chefs and with three plates of food in front of her.

Top Chef Says Goodbye

White House chef Christeta Comerford created magical dinners for world leaders.

Chef Cristeta Comerford wears a chef uniform and stands in a kitchen surrounded by Michelle Obama and four other chefs and with three plates of food in front of her.

© Kevin Dietsch/Getty Images News

 In this 2009 photo, Chef Cristeta Comerford (center) discusses a dinner menu with First Lady Michelle Obama (left) and White House pastry chef Bill Yosses (right).

Imagine being responsible for everything from dinners in honor of world leaders to a simple menu for the president’s family. For decades, that was the job of Chef Cristeta Comerford. In July, Comerford retired from her post as the executive chef of the White House.

“I always say, food is love. Through her barrier-breaking career, Chef Cris has led her team with warmth and creativity and nourished our souls along the way,” First Lady Jill Biden said, after Comerford’s retirement was announced.

As the nation’s top chef, Comerford oversaw the White House chefs and kitchen staff and planned all meals, catering to each president’s taste for everyday meals but also whipping up five-star courses to impress the dignitaries who dined at the White House during state dinners.

“To be a White House chef…it’s not just your knowledge and your skills and the way you cook. It has to be the way you treat people, the way you delegate your work, the way you [apply] your team as a cohesive force,” Comerford told CNN in 2014.

Cristeta Comerford and another chef stand in a White House room holding plates as a group of photographers take pictures.
Erin Scott—Official White House Photo
In this 2024 photo, Chef Cristeta Comerford (holding a plate and wearing glasses) and White House pastry chef Susie Morrison tell reporters about what will be served at a White House dinner.

Comerford grew up in Manila, Philippines, and moved to the United States at age 23. Trained to be a chef in Europe, she worked in various hotel kitchens before taking a job as an assistant chef at the White House in 1995. Comerford was promoted to executive chef in 2005, after planning and executing a state dinner for 134 guests. She was chosen over hundreds of other applicants. Comerford was the first woman and the first person of color to serve as executive chef in the White House.

In her 29 years at the White House, she cooked for the families of President Bill Clinton, President George W. Bush, President Obama, President Trump, and President Biden. It’s likely that all these families have very distinct food preferences—but customizing menus is part of Comerford’s expertise.

Edward Lee wears a blue chef’s coat and Cristeta Comerford wears a white chef’s coat as they stand at a counter placing food on trays.
Erin Scott—Official White House Photo

In this 2023 photo, White House chef Cristeta Comerford (right) prepares food with visiting chef Edward Lee before a White House dinner.

In 2010, Comerford competed in an episode of Iron Chef America with Chef Bobby Flay as her teammate. The pair defeated Chefs Mario Batali and Emeril Lagasse in a cooking challenge. Comerford said the thrill of winning a TV competition couldn’t compare to her day job.

“As great as…it was to compete…with such creative and talented chefs, the greatest honor is still coming to work every day, walking through the White House gates and serving my country by serving the healthiest, freshest food we can provide for the First Family and their guests,” she later wrote.

Did You Know?

The first person to cook the meals for a U.S. president was an enslaved man named Hercules Posey. Posey’s enslaver, President George Washington, brought Posey to the presidential residence, at the time located in Philadelphia. Posey earned widespread praise for his ability to cook meticulous, multi-course meals for Washington and his guests.

Posey was the first of many Black chefs that have prepared meals in the presidential home. Trusted by the president and tasked with feeding some of the most important and powerful people in the world, these chefs played an indirect role in shaping historical events.

A silhouette of Hercules Posey wearing 18th century clothing and holding a walking stick.
Sally Wern Comport, courtesy of Mount Vernon
This silhouette of Chef Hercules Posey was created using a description of Posey written by George Washington’s step-grandson.

Fave Foods, Presidential Edition

One presidential perk is the presence of a White House chef who’s ready to cook whatever you want. Based on their documented favorites, here’s what some presidents might have requested during their time in office. Click through the slideshow for more!

© John Parrot—Stocktrek Images/Getty Images, © Dolphy/Dreamstime.com, National Portrait Gallery, Smithsonian Institution, Washington, D.C.; gift of the International Business Machines Corporation, 1962 (object no. NPG.65.25), Richard Toller (CC BY-ND 2.0), National Portrait Gallery, Smithsonian Institution, Washington, D.C.; gift from the Trustees of the Corcoran Gallery of Art, Museum Purchase, Gallery Fund (object no. NPG.2019.18), © Marek Uliasz/Dreamstime.com, Smithsonian American Art Museum, Washington, D.C.; gift of Mrs. E. H. Harriman (object no. 1916.3.1), © Mypointofview/Dreamstime.com, Harris & Ewing Collection/Library of Congress, Washington, D.C. (LC-DIG-hec-15042), © Brent Hofacker/stock.adobe.com, © Library of Congress—Corbis Historical/Getty Images, © Olga Miltsova/stock.adobe.com, Department of Defense/NARA, © Leese01, Viktorfischer/Dreamstime.com, © Ron Edmonds—Bettmann/Getty Images, © Joyce Naltchayan—AFP/Getty Images, Eric Draper—courtesy of the George W. Bush Presidential Library & Museum/Library of Congress, Washington, D.C. (reproduction no. LC-DIG-ppbd-00371), © Mandel Ngan—AFP/Getty Images, Joyce N. Boghosian—Official White House Photo, © Mandel Ngan—AFP/Getty Images

The President’s Home

The White House in the evening, lit up with red, white, and blue lights.
Erin Scott—Official White House Photo

The White House isn’t just a home but also an office for the president’s staff. Maybe that’s why it has 132 rooms!

You can learn more about the White House at Britannica.

WORD OF THE DAY

predilection

PART OF SPEECH:

noun

Definition:
: a natural liking for something : a tendency to do or to be attracted to something
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In Case You Missed It

Figure skater Alysa Liu felt happy and confident at the 2026 Olympics. She skated off with a gold medal!
March 5, 2026
An all-women ranger team protects endangered animals on the Indonesian island of Sumatra.
February 26, 2026
Nima Rinji is showing the world the powerful spirit of the Sherpa people as he climbs the world’s tallest mountains.
February 19, 2026
Life wouldn’t be as fun without the work of these three inventors.
February 12, 2026