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The devastating fire at Brazil’s National Museum illuminates a global problem
Science

The devastating fire at Brazil’s National Museum illuminates a global problem

Protecting artifacts from entropy is no easy task.

How to send secret messages hidden in pictures and songs
Tech Hacks

How to send secret messages hidden in pictures and songs

Disguise your files.

Sweltering heat is exactly the right weather to get your flu shot
Vaccines

Sweltering heat is exactly the right weather to get your flu shot

It’s almost never too early or too late to get vaccinated against influenza.

Voyager 1 flying past Saturn, with Jupiter and the inner solar system visible in the background
Solar System

Here’s what we had to say about Voyager 1 when it launched 41 years ago

From the Popular Science archives.

a many trying to sleep
The Weirdest Thing I Learned This Week

The weirdest things we learned this week: deadly insomnia, the prettiest poop, and emergency beekeepers

Our editors scrounged up some truly bizarre facts.

jupiter
Solar System

Jupiter’s magnetic field has two ‘south poles’

It's completely different from Earth

Here’s what we learned from today’s Congressional committee meetings on social media
Social Media

Here’s what we learned from today’s Congressional committee meetings on social media

You don't need to watch C-Span to find out what Twitter and Facebook have to say.

How to make the world’s best paper airplane
Projects

How to make the world’s best paper airplane

John Collins designed the current world-record-holding paper airplane. Here are his tips.

Charted: Here’s how much your food waste hurts the environment
Pollution

Charted: Here’s how much your food waste hurts the environment

When you let broccoli rot in your fridge, you add noxious gases to more than just your veggie drawer.

a girl blowing bubbles outside
Physics

Mathematicians finally found the perfect bubble blowing formula

Science tackles the hard questions at last.

Space debris or sabotage? Conflicting theories about the recent ISS leak
International Space Station

Space debris or sabotage? Conflicting theories about the recent ISS leak

The leak has been repaired, but its origins remain mysterious.

Google’s Chrome browser got a big facelift, and new features, for its 10th birthday
Internet

Google’s Chrome browser got a big facelift, and new features, for its 10th birthday

What's new, plus old tricks you might have missed.

Illustration of mice astronauts in a spaceship.
Mars

Mouse poop might get humans to Mars

Researchers are testing how life on the International Space Station affects the microbiome.

Something called ‘squeezed light’ is about to give us a closer look at cosmic goldmines
Physics

Something called ‘squeezed light’ is about to give us a closer look at cosmic goldmines

Gravitational wave detection is going through an even tighter squeeze.

last week in tech
Technology

Last week in tech: A huge pile of new gadgets to close out the summer

Who will sit in the giant Acer gaming throne once winter comes?

When you should eat breakfast—and when you can probably skip it
Nutrition

When you should eat breakfast—and when you can probably skip it

Your first meal of the day isn’t as simple as you might think.

In-flight Wi-Fi is terrible—here’s how to make it better
Tech Hacks

In-flight Wi-Fi is terrible—here’s how to make it better

Don’t waste airplane time on load times.

Probiotics are drugs, so we should test them like drugs
Health

Probiotics are drugs, so we should test them like drugs

Only a few probiotic pills have actually been proven to work, despite all the health claims supplement companies make about them.

Cheese played a surprisingly important role in human evolution
Archaeology

Cheese played a surprisingly important role in human evolution

Ancient Egyptian cheese helps us understand when and how dairy came into our lives.

Don’t like what Google says about you? You might be able to change it
Tech Hacks

Don’t like what Google says about you? You might be able to change it

Control what people see.