Read the latest articles from Popular Science (Page 403)

Two light brown cows standing on a grassy hill against a yellow sun and purple clouds. Illustration.
Pets

The social lives of cows are remarkably sophisticated

Locked away in dairy barns and cattle pens, cows and their culture need a moment to shine.

Why scientists are still on the quest to build an artificial heart
Heart Disease

Why scientists are still on the quest to build an artificial heart

The history of the total artificial heart is punctuated with both brilliant innovation and continual clinical failure.

A guide to Section 230, the law that made the internet the Wild West
Social Media

A guide to Section 230, the law that made the internet the Wild West

The law from 1996 is at the heart of a pair of important Supreme Court cases. Here's a brief explainer.

Palm holding small biodegradable smart bandage
Technology

A new biodegrading ‘smart’ bandage promises faster healing

The newest smart bandage can stimulate cell growth without overstaying its welcome.

Kindle e-reader on store home screen.
AI

ChatGPT is quietly co-authoring books on Amazon

In fact, the AI ghosts authors have plagued multiple websites.

The best luggage and backpack deals
Gear

The best luggage deals to shop right now

Keep your clothes, electronics, and souvenirs safe and sound while lugging them around.

Recreations of tiny points found in Grotte Mandrin that were reproduced using the same flint and replicating the same technologies from thousands of years ago. These experimental points were then used as arrowheads and shot by bow to analyze the categories of fractures appearing on these arrowheads and compare them with the scars found on the archeological material.
Archaeology

Archery may have helped humans gain leverage over Neanderthals

People may have used arrows for hunting in France 10,000 years earlier than previously known.

The best foldable treadmills help you sweat and save space.
Fitness Gear

The best folding treadmills

Break a sweat without sacrificing too much floor space.

Singer Mariah Carey performs on stage with her twins Moroccan Cannon and Monroe Cannon during her "Merry Christmas To All!" at Madison Square Garden on December 13, 2022 in New York City.
Psychology

This is your brain on Christmas music

Love it or loathe it, the annual barrage of holly, jolly tunes has some power over people's psyche.

An optical image from the Keck-I Telescope superimposed on a Chandra X-ray image of Uranus.
NASA

Uranus’s quirks and hidden features have astronomers jazzed about a direct mission

The ice giant and its neighbor Neptune remain 'the enigmas of the solar system.'

spotify's ai dj feature in their app
AI

Meet Spotify’s new AI DJ

Here’s how it was made—and how it will affect your listening experience.

Six faint circular object glow in space. These are images of six candidate massive galaxies, seen 500-800 million years after the Big Bang.
Space Telescope

These 6 galaxies are so huge, they’ve been nicknamed ‘universe breakers’

The JWST findings could reshape what was thought to be settled science.

Close up of person wearing vocal strain monitor and haptic wrist device
Engineering

A smartly trained voice monitor could save singers, teachers, and loud talkers from strain

It's opera singer-tested.

A sign warning of snow and ice conditions, reading " Winter Storm Warning in Effect until 6 pm" is seen on a highway in St. Paul, Minnesota, on February 22, 2022.
Weather

Coast-to-coast storm causing extreme weather across the country

Rain, snow, ice, and thunder could soon hit 29 states across the US.

hands holding a phone with a Twitter logo on the screen. Twitter's white logo can be seen on the background.
Tech Hacks

How to keep using two-factor authentication on Twitter for free

Soon, only Twitter Blue users will be able to secure their accounts with unique codes sent over text messages.

Vigil attendees at a California skatepark remember Tyre Nichols with prayer candles forming a heart. Nichols died from police violence in his home city of Memphis after EMTs also failed to react quickly to his injuries.
Mental Health

Police brutality is an unaddressed public health crisis in America

There's a dangerous link between violence against Black Americans and mistrust in medical institutions.

The rise of green hydrogen in Latin America
Renewables

The rise of green hydrogen in Latin America

In anticipation of future demand, several projects are underway in the region to produce this clean energy source.

Putin is backing away from New START—here’s what that nuclear treaty does
Air Force

Putin is backing away from New START—here’s what that nuclear treaty does

The agreement between the US and Russia caps how many nuclear weapons each country can deploy.

An architecture mockup of the Hunter's Point South Park.
Engineering

The ability for cities to survive depends on smart, sustainable architecture

Creation and destruction is ongoing in NYC. These promising projects could be models for the future of construction.

Several European spruce bark beetles on a dry piece of wood.
Land

These beetles sniff out fungus-infected trees to find their next target

Specialized neurons in the European bark beetle’s antennae can sense resins the fungi produce.