Popular Science. Demystifying the worlds of science and technology since 1872.

two large brown bears
Bears

Fat Bear Week Round 1, Part 2: Battle of the big boys and the up-and-comers

Chunk, Bucky Dent, Walker, and Gully all compete.

bear with cubs
Bears

Record-setting Fat Bear Week turnout overloads voting site

Explore.org has extended Day 1 voting to tomorrow.

four sets of bear families
Bears

Fat Bear Week Round 1, Part 1: It’s a battle of the moms and single females

Bear 132 found her lost cub while Bear 909 lost both her cubs, one in an attack by another bear competing today.

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Latest Articles

A steel mill belonging to the Jones and Laughlin Steel Company, Pittsburgh, Pennysylvania, USA, circa 1960. (Photo by Harvey Meston/Archive Photos/Getty Images)
Pollution

At an old steel site in Pittsburgh, bacteria evolved to survive (and eat) industrial pollution

Billions of microbes inhabit these soils.

Art rendering of plesiosaur swimming underwater in an ocean
Evolution

Plesiosaurs vomited indigestible pellets like owls

The Jurassic marine predator’s tummy likely couldn’t handle invertebrate shells.

A crow eats the inside of dead squirrels mouth on road.
Wildlife

Why scientists want your photos of wildlife eating lunch

With a new platform called Who Eats Whom, citizen scientists reveal the fascinating, sometimes shocking interactions between species.

Viking silver cache discovered in Denmark that includes jewelry, bars, and coins
Archaeology

Gardener finds 40 pounds of Viking silver in his backyard

The 10th century cache is the largest discovery of its kind in Denmark.

composite image of a painting of Louis XIV of France and 18th century European high heels.
Fitness & Exercise

High heels were once the height of men’s fashion

They were also never intended for walking.

penguins in front of structures
Birds

20 soaring images from the Bird Photographer of the Year 2026 awards

From urban seagulls to snorkeling penguins.

NASA’s X-59 quiet supersonic jet flies over the Mojave Desert during its third flight on Thursday, March 26, 2026, from NASA’s Armstrong Flight Research Center in Edwards, California. The aircraft departed and landed at Edwards Air Force Base, completing its approximate one-hour flight and providing the team with significant data for future flights.
Engineering

China’s new supersonic plane could travel twice as fast as sound

The TMS-10 is on track to complete a test flight by the end of the year.

a lemur with its mouth open in a tree
Wildlife

Opera singers and shrieking lemurs share vocalization strategies

The world’s only known signing lemur needs to make calls that can travel through the thick rainforest.

large male bear on a waterfall
Bears

Walker and his big booty fight for Fat Bear Week glory

Bear #151 was a playful, chill bear. This year, things changed at the Brooks River.

Hittite cuneiform tablet fragment
Archaeology

Fragment of oldest known peace treaty discovered in Turkey

The Kadesh Peace Treaty was signed by Pharaoh Ramesses II and Hittite King Ḫattušili III around 1259 BCE.

Young man wearing wireless headphones, catching up with his team during a video call via desktop computer, sitting in his home office. Teleworking from home. Flexible working.
Mental Health

3 myths about working from home, debunked

Turns out we’re not more productive and happy in the office.

Google's AI Mode feature is displayed on the Google Search homepage in this illustration photo taken on September 9, 2026. (Photo by Matteo Della Torre/NurPhoto via Getty Images)
AI

How to know if you can trust an AI’s answer to your question

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Popular Science has been demystifying the worlds of science and technology since 1872. We explain the inner workings of the phone in your pocket, explore world-changing innovations, and examine everything from the marvels of deep space to the secret lives of staples like bread. We deliver an engaging, approachable, and inclusive look at emerging technologies and scientific advances.
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