A state-by-state breakdown of policies that could change your community.
In a wide-ranging interview with PopularScience.com, Aldrin talks about a mission to Mars, 34 years of sobriety and the future of American leadership in space.
How regular people can contribute to scientific research
Give these reptiles some love.
Plus, a gallery of endangered zoo babies born this year. Squee!
Some rare good environmental news.
Plus, twin red panda cubs
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions
Rating may help drive efforts to save some of Earth's most critically endangered (and weirdest) birds.
Plus a drone's-eye-view of Greenland
How do we decide how rare an animal is? How do we figure out how long before it goes extinct? And how do we stop that from happening?
Nearly half of this year's MacArthur "genius grant" recipients are advancing science and technology
The story of how one of the most polluted waterways in America came to be located in one of the country's most expensive neighborhoods. Also: dysentery, cancer, and arsenic poisoning.
We've rounded up 2014's most mind-blowing images for your viewing pleasure
Jellyfish invasions, Internet auctions, god particles: Read about the year's biggest science stories before they happen. Bonus: How to decipher geeky jargon and when to buy a DeLorean
Scientists say amphibian death could be the start of the first mass extinction since the dinosaurs
Our 10 favorite science pics this week
Plus, glass on Mars
Wyoming's anti-scientific laws have allowed the most famous wolf in Yellowstone to be shot. Shooting wolves isn't only senseless--it actively harms the environment.
It's a contentious, edgy argument! But it's flawed in just about every way. Here's how to exploit those flaws.
For oenophiles and chocoholics, it was a very good year. For clean air: not so much.
Richard Stroud is the nation's chief medical examiner for wildlife, and he's getting a state-of-the-art lab. Poachers beware.
A recent fossil discovery gives renewed credence to a theory of massive and swift extinction
It's been gone since 1983, but the Lazarus Project has brought it back to life.
Guess the species (either common or Linnaean) by tweeting at us--we're @PopSci--and get your name listed right here! Plus eternal glory, obviously. Update: We have a winner!
Even after the species went extinct, people still reported "seeing" them in the wild.
Plus: What you need to know about sugar this Halloween.
So much easier than counting on the ground
Sightless, flightless, and 10 feet tall.
Megapixels: It was rediscovered by a drone.
Researchers look to ancient melts to predict which species might survive in the present
Microsoft unveils Sun Microsystems' vision for 2004
FDA wants to make this official and recently asked to know more
Fabien Cousteau and his team are setting out to break the record for living in an underwater habitat.
Bad news for orangutans
Astronomy: Timothy Ferris eyes the amateur asteroid-watchers.
Conceptual shelters that will protect us all from the perils of our rapidly changing environment: rising waters, extreme heat, rampant pollution and overpopulation
It worked in the lab—but will it work in the jungle?
The quest to understand, explore, and protect the amazing animals
To reach the bottom of all five oceans, this Texas businessman commissioned “the most significant vehicle since Apollo 11.”
Science of the Union.
It might not (just) be foul play.
These mysterious creatures exist today more or less unevolved from the forms they had hundreds of millions of years ago
A five-year study on global wildlife finds that one fourth of the world's known mammals face extinction
Our ancient genetic engineering that turned wolf to dog has made its mark on modern wolves—and may help them survive modern climate
Newsworthy eye candy
He reveals the rules of groups
Predictions for how we will live and work—on Earth or in space—in the decades and centuries to come
Biologists found evidence that purple loosestrife underwent evolution after arriving in North America.
Adaptation measures would strengthen local resilience to sea level rise and the next Superstorm Sandy.
The perils of taxonomy in the age of genetics
The newly-discovered dwarf gecko measures three-fourths of an inch.
Scientists hope to strengthen aging brains by tweaking the behavior of DNA
If you don't need to be in a solar system to have liquid water, then why not take your planet for a spin around the galaxy?
How do you know you're comparing apples to apples?
It's vague, and carries no actual weight, but we're sure this arctic fox is pleased to know that there's a 7-point scheme to save it when its habitat melts.
The tiniest frog, a bioluminescent cockroach and more
In a highlight of last week's conference, Gates calls for zero emissions and agrees with Obama: We need nukes
Now here is some change you can bee-lieve in.
The islands of stinging insects are just the beginning.
Both the Atlantic and Pacific areas saw a record number and intensity of storms.
A commute so quick you could just die.
We're not built for this stuff.
How to build a subway in the Eternal City.
I study the motion of the ocean through rocks.
They may be slow, but they cover entire football fields if left to their own devices.
Time is subjective.
But it's a loss others might not understand.
Playing with time.
But you'd be forgiven for thinking otherwise.
The now-extinct giant beaver once lived from Florida to Alaska.
Obesity is booming, yet there are only two medications approved for long-term weight loss. Why is it so hard to make a diet pill that works? For one thing, evolution hates diets
Scientists cross mice that have normal hearing with prolific breeders to get the best of both worlds in a new super mouse
We must intervene to halt these aging processes, says Aubrey De Grey. the rub is, no one has figured out how
Holy reticulated snake spine! A fossil reveals a 2,500 pound prehistoric python (along with some surprising facts about global temperature)
Including a pepper-spraying iPhone, an illustrated guide to eating a Triceratops, and more
A landmark study refines measurements of losses in Greenland and Antarctica and how ice melt is contributing to rising seas. Here's why that is important.
Patients who learned weight maintenance techniques through the game "Second Life" were more likely to keep the weight off.
More than 2 million plants are now online.
Recent science suggests that, while important to restoring Yellowstone Park's ecological health, wolves are not the primary solution. Let the fighting commence.
The justified attack on Green Coffee Extract
A bacterium in Cystic Fibrosis patients appears to cheat on its counterparts
Confident a co-worker has a tendency to retain water? Bet against him on the Tanita Innerscan BC-350's body water line (and then make sure he chugs his beverage at lunch)
Living at 3,300 feet in one of the most inhospitable habitats on Earth, this fish has evolved in a very peculiar way.
A team of U.S. researchers are investigating the possibilities.
The big and bad crises that could wipe out humanity
From the farm to the dinner plate, here's where food gets lost.