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.
Read the latest articles from Popular Science (Page 887)
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
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
Therapies from nature sometimes work, but diluted dog rabies does not.
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
Little changes can make a big difference
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
They’re robotics wingmen for China’s carrier pilots.
Rising temperatures are opening new territories for venomous creatures—including your backyard
Welcome to the neighborhood, fire ants! Sure is hot out today!
These octopuses just wanted a safe place to lay their eggs, but now they’re doomed
Warmer isn't always better.
A new study on concussions and Parkinson’s provides one more reason to protect your noggin
Even a minor brain injury might raise your risk.
There’s still time for us to save the Great Barrier Reef
Just how much trouble is coral in? The answer is complicated.
Saving pollinators is about more than just honeybees
Wild insects are the most important and vulnerable pollinators.
Watch SpaceX launch NASA’s new planet-hunting satellite
TESS is blasting off on Wednesday night.
Neolithic surgeons might have practiced their skull-drilling techniques on cows
Trepanation may not have been limited to humans.
We’re so close with dogs, even our poop looks similar
A new study finds that human and dog microbiomes have more in common than you might expect.
This company wants to replace braille with a controversial new font
Meet ELIA, a new tactile reading system.
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