Read the latest articles from Popular Science (Page 462)

expiration date on covid test
Life Skills

How to check if your at-home COVID test has expired

Your antigen test may have gotten a new lease on (shelf) life.

Close up of electric vehicle charger plugged into electric car
Electric Vehicles

New ‘super-fast’ method can shave EV battery charging down to minutes

Machine learning shows that even existing batteries can charge safely and speedily if you treat them right.

This week is the last chance to order free at-home COVID tests
COVID-19

This week is the last chance to order free at-home COVID tests

Free tests can still be obtained at several federally-funded community sites and health clinics across the US.

Coast of Lake Superior
Wildlife

The untouched ‘wilderness’ of the Great Lakes is an illusion

Environmentalist Dave Dempsey explains how human action (and inaction) made the iconic lakes the way they are today.

NASA delays Artemis 1 launch due to engine bleed
Moons

NASA delays Artemis 1 launch due to engine bleed

The un-crewed Artemis 1 mission is postponed until September 2 at the earliest.

European red fox crouched on concrete and looking directly into the camera
Biology

Can invasive species ever be ‘good’?

A new scoring system looks at the pros—and cons—of introduced wildlife to consider if they should be removed.

The Army’s new Arctic vehicle, Beowulf, is made for ice and marshes
Army

The Army’s new Arctic vehicle, Beowulf, is made for ice and marshes

The region is warming, and the military wants a ride that can handle all types of terrain.

MAGIS-100 vacuum for a Fermilab quantum physics experiment
Particle Physics

Atoms are famously camera-shy. This dazzling custom rig can catch them.

The mirror-studded camera is designed to take glamor shots of quantum physics experiments.

organized desktop
Life Skills

Teeny desk? Here’s how to make the most of it.

Make the best out of your desk.

Birders watch rare bird
Animals

Lost bird sightings can draw hundreds of thousands of tourist dollars

When an internet-famous Steller’s sea eagle turned up roughly 11,000 kilometers from home in late 2021, birders flocked to catch a glimpse.

Person with earbuds and eyes closed
Tech Hacks

How to find music and videos with zero plays—and discover the next big thing

For when you feel like listening or watching something completely new.

Behind the wheel of the bruisingly quick Rimac Nevera hypercar
Electric Vehicles

Behind the wheel of the bruisingly quick Rimac Nevera hypercar

It costs $2 million and will do zero to 60 in just 1.85 seconds. Here's how they developed it—and what it's like to drive.

Looking for nuclear weapon
Military

The US military doesn’t know where 6 of its nuclear weapons are

The U.S. military had 32 nuclear accidents during the Cold War, and several nuclear weapons remain unaccounted for.

Samsung Galaxy Z Flip4 Review
Phones

Samsung Galaxy Z Flip4 review: Powerful vibes

The Samsung Galaxy Z Flip4 is all about flip-phone nostalgia.

Gila monster lizard and real-life dragon hissing in the desert
Science Fiction

Could dragons be real? Not in the way we think.

Let's compare the flying assassins in ‘House of the Dragon’ to real-life lizards and dinosaurs.

Not a math person? Duolingo wants to help.
Technology

Not a math person? Duolingo wants to help.

Duolingo's app made learning languages fun. Now it wants to do the same—for math.

Are drones the future of sustainable deliveries?
Climate Change

Are drones the future of sustainable deliveries?

Swapping drones for gas trucks to deliver small packages could be a win for the planet.

Europe’s largest dinosaur skeleton may have been hiding in a Portuguese backyard
Dinosaurs

Europe’s largest dinosaur skeleton may have been hiding in a Portuguese backyard

A construction project led to a remarkable sauropod discovery.

Phone displaying Twitter Spaces podcast tab
Social Media

Twitter will start streaming podcasts, and they’re not limited to 280 characters

A redesigned Spaces feature will automatically suggest 'compelling podcasts' to users.

In a first, James Webb Space Telescope reveals distant gassy atmosphere is filled with carbon dioxide
Exoplanets

In a first, James Webb Space Telescope reveals distant gassy atmosphere is filled with carbon dioxide

Scientists used transmission of light to determine the makeup of the gas giant's atmosphere.