Sex isn't nearly as binary as you think it is.
Our editors scrounged up some truly bizarre facts.
The key: first, model hurricanes.
The U.S. National Archives is now on Giphy
A frozen trove for future research
Online archives let you get inside the great biologist's head
A lot, actually
Now, the historic astronomy images are on glass plates in a building. But what if they were digital and on the internet?
British soldiers who were captured by the Germans during the Battle of France dreamed about lots of food, and not that much violence.
Check out some of the most important research in any field at a glance
A recently digitized TV news archive highlights the big points of the 1950s and 1960s: Civil Rights and the polio vaccine.
Coverage doesn't always reflect where the money is going. Whether that matters is a different story.
Researchers say the Midwestern astronaut might really have said "one small step for a man."
The dust was rediscovered last month in a UC Berkeley warehouse.
We're living in the age of the completely documented existence.
Plus: zoology's most wanted.
And here's a few fun ones in advance.
From a cello-horn to a harpitar, these music-makers are way more exciting than a plain old piano.
Fight fire with fire science. And fear the fire demons.
A 15-mile free fall, a tennis match at 3,000 feet, and more daredeviling from the archives
Stories of reindeer, walruses, and Mars simulations
Not just for fictional villains anymore
Traps, lamps, poison and fire
Training, gear, and sometimes, sadly, drugs, give the world's top athletes an edge in competition
What we learned from, and about, our domesticated friends in the last century
Tips for more restful slumber, decoding how we dream and just a dash of pseudoscience
The tale of the "plant hunters," farming whales, vegetable matter that rains from the sky and more
Practical jokes from invisible ink to dangling a car off a bridge
Abominable snowmen, sea serpents and dragons, oh my!
Franklin is all about energy and climate, as well as interplay between the two. Today, it's hunting for fossil fuels--and considering the consequences of burning them
Newton, Darwin, and all your other favorites
Harvard has a world-class trove of valuable astronomical data. But it's in the form of half a million glass photographic plates
A new ice age, exploding stars, the hypothetical Doomsday Machine, and more scenarios that are almost certain to eradicate life on Earth
What's on the moon? Here are the "midget-sun hypothesis," lunar snow, and more wild speculations we made prior to the Apollo 11 mission in 1969
Domed glass cities, schools within skyscrapers, rocket-ship neighborhoods and more as we cruise through the complete PopSci archive in search of the perfect urban life
Bogus canals on Mars, alien germs from Venus and the "truth" behind UFOs
On the 40th anniversary of Earth Day, we take a look back at where it all began
The origins of wind power, Roomba's great grandfather and the magical workings of the automatic shower faucet
The National Archives releases old UFO-related case reports
In this piece from 1921, PopSci subjects the Sultan of Swat to a battery of scientific tests hoping to discover the secret behind his superhuman swing
Ships, submarines, and other watercraft from the PopSci archives
Tollbooths, ATMs, doctors' offices, online chat: You leave critical personal data behind wherever you go. Let's follow one American as he scatters his digital DNA.
A hall of fame of past Sci-Tech Oscar winners
Something Fishy Going On
Rubbing your finger around the rim of the glass is much like taking a bow to a violin string.
The Germans consider DNA testing to match poop to pooch
Stress wrecks your head -- and, sometimes, the truth.
Does an announcement that no anthrax was found mean with certainty that none is there?
Medicine: Botox can also help the genuinely young.
Epidemiology: The government may let you have a smallpox injection, if you choose. Should you get one?
These high-performance machines will run you as much as $15,000. Here's why a custom-built racer is a bargain
A microbial scale paves the way for better toxin detectors.
We help America's first family of high-tech fireworks prepare for July 4th.
Spider-Man's robotic twin takes the hassle and expense out of building inspections
Birth of a new city star
Did SARS start in space?
Oceanography: Scientists get 'em close-up with CaveCam.
Books: Neither nature nor nurture, argues controversial author Paul Ehrlich.
A new rapid-fire gun could save lives rather than take them.
Book of the month: Ghosts of Vesuvius
Have chair, might survive
Scientists teleport atomic particles and push quantum computing closer to reality.
The key to good health is all in the wrist.
Oceanography: They came from the bottom of the sea.
Baseball: How ESPN's K-Zone technology gives fans a better view of home plate.
Thrills: On the new (2,400-hp!) world's fastest roller coaster.
Why do seemingly ordinary people become stalkers?
Medicine: Ultrasound waves are more than loud enough to rouse a sleeping fetus.
Astronomy: Timothy Ferris eyes the amateur asteroid-watchers.
The FDA sidesteps human safety trials to clear a risky anti-nerve-gas pill.