Read the latest articles from Popular Science (Page 886)

How to safely dispose of your old medications
Medicine

How to safely dispose of your old medications

A handy guide to help you, yes YOU, combat the opioid epidemic.

Scientists just discovered a strange new DNA shape lurking in human cells
Science

Scientists just discovered a strange new DNA shape lurking in human cells

But what does it do?

Crowdfunding helps women succeed in tech because venture capital won’t
Technology

Crowdfunding helps women succeed in tech because venture capital won’t

On Kickstarter and Indiegogo, women outperform men.

While you’re staring at your new phone, scientists are finding ways to recycle your old one
Climate Change

While you’re staring at your new phone, scientists are finding ways to recycle your old one

Used cellphones are a huge source of electronic waste.

The world’s best freedivers seem to have evolved super-sized spleens
Health

The world’s best freedivers seem to have evolved super-sized spleens

If you want to be a successful freediver, work out your spleen.

Windows Hello
Tech Hacks

How to log into your computer with your fingerprint or face

Upgrade to biometric security.

kiwi bird
Birds

You’d have to give birth to a 30-pound baby to truly know how a kiwi bird feels

If it looks like a fruit and acts like a mammal, what is it?

galaxies
Physics

It’s rude to ask a galaxy’s age. Luckily, its shape offers a clue.

Younger galaxies appear flatter than their more well-rounded elders

New poop sample analysis reveals interspecies monkey romance
Animals

New poop sample analysis reveals interspecies monkey romance

The hybrid kids are alright.

memory experts
Science

Proving precognition, programming a screenwriter, and other tales from the field

Scientists share their favorite stories.

Scientists finally confirm that Uranus is surrounded by fart clouds
Solar System

Scientists finally confirm that Uranus is surrounded by fart clouds

But the cold would kill you before the smell did.

Algae bloom in Lake Erie, September 2017
Climate Change

A lake full of algae will wreck more than your summer swimming plans

Algae blooms in lakes and oceans generate pollution that harms people, pets, and the planet.

Want to take a Mensa intelligence test? Here are four practice questions
Science

Want to take a Mensa intelligence test? Here are four practice questions

The society is open only to people who score in the 98th percentile or higher on a preapproved intelligence test.

Can you pass the U.S. Army’s World War I-era intelligence test?
Army

Can you pass the U.S. Army’s World War I-era intelligence test?

Literate recruits took the written Alpha test, while illiterate applicants took a visual Beta.

It’s not just Syria—chemical weapons still pose a global threat
Weapons

It’s not just Syria—chemical weapons still pose a global threat

What you need to know about chemical weapons.

Homeopathic and natural remedies aren’t the same thing—and only one of them is total nonsense
Medicine

Homeopathic and natural remedies aren’t the same thing—and only one of them is total nonsense

Therapies from nature sometimes work, but diluted dog rabies does not.

How to become a space tourist: 8 companies (almost) ready to launch
Private Space Flight

How to become a space tourist: 8 companies (almost) ready to launch

How much are you willing to pay to become an astronaut?

11 easy ways you can help save the planet this Earth Day
Climate Change

11 easy ways you can help save the planet this Earth Day

Little changes can make a big difference

Anyone can compost their food waste (and everyone should)
Climate Change

Anyone can compost their food waste (and everyone should)

And it doesn’t have to smell.

China is building drone planes for its aircraft carriers
Military

China is building drone planes for its aircraft carriers

They’re robotics wingmen for China’s carrier pilots.