Read the latest articles from Popular Science (Page 836)

three mannequins lying face down in a field

Insects

Is body paint a good insect repellent? The answer lies in this field of sticky mannequins.

Don't put the DEET down quite yet.

By Jessica Boddy

Solar System

Planet Nine might not actually be a planet

It could be something even cooler.

By Neel V. Patel

Tech Hacks

12 essential apps for any Android phone

The picks you need.

By David Nield

Vaccines

The anti-vax movement is among this year’s top 10 global health threats

Also making the list: air pollution, dengue fever, and antibiotic resistance.

By Sara Chodosh

Evolution

Do wild animals hate being cold in winter?

And why are so many dogs wearing snow boots?

By Bridget B. Baker/The Conversation

Engineering

Building a barbell for 1,000 pound deadlifts takes careful engineering and lots of testing

The Rogue Fitness Elephant Bar is built to bend.

By Stan Horaczek

Conservation

Some national parks won’t recover from the government shutdown for decades

Joshua Tree and other deserts house sensitive soil crust communities.

By Ula Chrobak

Life Skills

Yes, cabin fever is real—here’s how to prevent it

Don't let winter isolation ruin your mood.

By Dan Seitz

Fitness & Exercise

7 iconic movie training montages ranked by professional trainers

Would Rocky’s regimen really work? We asked the experts.

By Eleanor Cummins

Health

Please don’t pay $8,000 for an infusion of young blood

There are so many better ways to spend your money.

By Nicole Wetsman

Health

One-quarter of antibiotic prescriptions aren’t necessary

And that's a conservative estimate.

By Sara Chodosh

Solar System

Saturn is ancient, but its rings are only as old as the dinosaurs

How the gas giant got its rings.

By Neel V. Patel

Self Driving

Artificial intelligence thinks your face is full of data. Could it actually unmask you?

Why humans, and by extension our machines, are so determined to “read” people.

By Eleanor Cummins

Evolution

Sloths aren’t the picky eaters we thought they were

When their favorite food isn't available, they will try something else.

By Jan Hoole/The Conversation

Climate Change

Ocean warming is making waves stronger—and that’s a problem

The first systematic analysis of world wave energy spelled trouble for coastal communities.

By Kat Eschner

Artificial intelligence made this robot dog a very good boy

The robot's "brain" actually learned in a simulator.

By Rob Verger

Climate Change

The world’s oldest, deepest lake is full of life. Humans are changing that.

Siberia’s Lake Baikal, a UNESCO world heritage site, is imperiled by rising temperatures and pollution.

By Marlene Cimons

The Weirdest Thing I Learned This Week

The weirdest things we learned this week: killer surgeons and mysterious floating feet

Our editors are back with more bizarre facts for season two.

By Rachel Feltman

Electric Vehicles

Here’s a look at Harley-Davidson’s LiveWire electric motorcycle

The moto giant showed off a pair of lightweight electric prototypes at CES in Las Vegas.

By Steve Anderson/Cycle World

Nutrition

Junk food ads disproportionally target black and Hispanic kids over white kids

Teens and younger children are also seeing ads in far more places, like YouTube and social media outlets, than in previous years.