A new study finds that human and dog microbiomes have more in common than you might expect.
We're so close with dogs, even our poop looks similar
How to purge all your search histories
Asking for a friend...
Neolithic surgeons might have practiced their skull-drilling techniques on cows
Trepanation may not have been limited to humans.
Exclusive first look: Daisy is Apple's new robot that eats iPhones and spits out recyclable parts
A two-minute journey through this machine renders a smartphone into recyclable materials.
Saving pollinators is about more than just honeybees
Wild insects are the most important and vulnerable pollinators.
There’s still time for us to save the Great Barrier Reef
Just how much trouble is coral in? The answer is complicated.
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.
These octopuses just wanted a safe place to lay their eggs, but now they’re doomed
Warmer isn't always better.
This year's Lyrid meteor shower coincides with Earth Day, but light pollution is ruining the show
Light pollution makes it hard for many people to appreciate the stars.
How to throw a punch
Without hurting yourself more than your opponent.
Rising temperatures are opening new territories for venomous creatures—including your backyard
Welcome to the neighborhood, fire ants! Sure is hot out today!
China is building drone planes for its aircraft carriers
They're robotics wingmen for China's carrier pilots.
Five rad and random products I found this week
The end-of-week dispatch from PopSci's commerce editor. Vol. 45.
Here’s an amazing new picture of the Lagoon Nebula to celebrate Hubble’s 28th birthday
Happy birthday to the best space telescope ever! Love, PopSci.
Anyone can compost their food waste (and everyone should)
And it doesn’t have to smell.
11 easy ways you can help save the planet this Earth Day
Little changes can make a big difference
How to become a space tourist: 8 companies (almost) ready to launch
How much are you willing to pay to become an astronaut?
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.
Can you pass IBM's test for entry-level roles?
The Information Processing Aptitude test is notoriously difficult.
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.