Read the latest articles from Popular Science (Page 735)

Rapid COVID-19 test results strip

Should vaccinated people still get COVID tests?

Symptoms are key here.

By Tyler Santora

These are the most common allergies (and the deadliest)

Seasonal allergies always hit hard, but you might be surprised by what kills people.

By Sara Chodosh

monument valley with person on horse in foreground cars in background

Humans haven’t always wrecked the environment

It's only been in the last few hundred years that we've starting destroying land.

By Philip Kiefer

A hand caryrying a phone with the Empire Pass vaccine app on it

Here’s how New York’s ‘vaccine passport’ app works.

New York is the first state to issue a "vaccine passport" app. How does it work and how secure is it?

Woman wearing a mask in a park

UK doctors will re-expose COVID-19 survivors to study how long immunity lasts

Here's what you need to know this week.

A person using a laptop computer on a wooden table.

5 Google Chrome tips that will level up your browsing

Search harder, better, faster.

A man walks beneath a shooting star.

5,000 tons of ancient ‘extraterrestrial dust’ fall on Earth each year

Earth is basically a gigantic cosmic dustbin.

By Leto Sapunar

Black Hawk helicopter in field.

Senator Tammy Duckworth describes the day her Black Hawk was shot down

It was November of 2004 in Iraq, and an RPG hit the helicopter.

By Tammy Duckworth

iceberg floating in southern ocean

Eddies in the ocean might affect sea level rise

Circular currents could block warm water from reaching Antarctica.

Shovel digging into soil.

Compost can help protect us from food poisoning

Organic fertilizer performed better than its industrial counterparts in fighting harmful pathogens.

By Shaena Montanari

US Army soldier running on a track in a bomb suit

Meet the woman who set a record for running in a 96-pound bomb suit

U.S. Army Captain Kaitlyn Hernandez took blast-proof armor to the track—and crushed it.

By David Roza/Task & Purpose

Oblique view of the Earth from space, showing its atmosphere

Astronomers cooked up alien atmospheres in an oven

The secret ingredient is meteorite powder.

By Charlie Wood

9 advanced Gmail searches that will dig up stuff you never knew you missed

9 advanced Gmail searches that will dig up stuff you never knew you missed

Find lost messages, unearth attachments, clear your inbox, and more.

A partially open MacBook in the dark, with multi-colored lights shining from the screen.

23 useful Mac settings hiding in plain sight

Really Mac-simize your skills.

High temperatures can cause embryonic bearded dragons to change sex

Harsh conditions may have led to this surprising evolutionary trait.

Loud industrial noise hurts neighboring trees

Loud industrial noise hurts neighboring trees

Woodland areas near loud natural gas wells had fewer young trees than areas without the noisy production.

By Ellie Shechet

The biggest animal ever to fly was a reptile with a giraffe-like neck

The biggest animal ever to fly was a reptile with a giraffe-like neck

Azhdarchid pterosaurs are also the largest ever flying vertebrates.

peron riding a bike in the city

How to carry just about anything on your bike

Who needs a trunk when you’ve got a rack and some bungee cords?

By Sandra Gutierrez G.

manatee underwater

The US is tropicalizing, and you’ve probably already noticed the change

If you've heard about turtles dying in cold snaps, you've heard about this phenomenon.

By Philip Kiefer

boy screaming into microphone

Our most recognizable screams are the most joyful

Happy screams were easier to pick out than those of fear or pain.

By Philip Kiefer

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