Life as we know it probably wouldn't exist.
Our favorite science images of the week
The first color photo of Pluto, a warm-blooded fish, and much more
What we can learn from a massive meteor crater
Microbes that eat and breathe electricity have forced scientists to reimagine how life works—on this planet and others
We've rounded up 2014's most mind-blowing images for your viewing pleasure
It's a new policy for the International Astronomical Union.
Massive space rocks hurtle past Earth with frightening regularity. Some scientists want to deflect them. Others want to drag one closer.
Chatting about the universe with Neil deGrasse Tyson
A critical failure in Kepler's alignment may spell the end for the storied planet hunter.
Submit your three-line ode to the red planet by July 1!
A roundup of the data visualizations and illustrations that best conveyed the year in science
NASA already has an orbiter for 2013 and a lander for 2016; now it has another rover in the works, too.
An open letter from PopSci to President Obama about science and the future
Looking around for methane in Gale Crater, Curiosity found a whole lot of nothing. But that doesn't dash hopes of finding evidence of life on Mars some day.
Not where you'd think.
Intricate, untested sky crane airdrop is better than airbags, according to NASA
Call us, maybe
Tyson's book "Space Chronicles: Facing the Ultimate Frontier" is out today
What's the most habitable planet?
And whether they'll look like E.T.
A frothy moat, not a shield, protects us from cosmic rays
A new ice age, exploding stars, the hypothetical Doomsday Machine, and more scenarios that are almost certain to eradicate life on Earth
Alan Burns made a fortune in the oil business. But as oil wanes, he's convinced that clean energy will be—must be—the next big thing. And so this inventor has poured his fortune into a challenge far greater than finding new oil deposits: extracting energy from the ocean
Not every student falls asleep at the thought of doing another lab. For a fortunate few, homework means setting off bombs, making lightning, crashing cars, and unleashing 100mph winds. Come meet the luckiest students in the country inside (with video)
We'll get a vaccine for addiction, debate the future of nuclear power, use new tech to take on water shortages, and-just maybe-find an extra dimension or two. Happy New Year
The new film's science is even more confused than the plot.
Will Marc Norman's secret ice recipe set speed skating records in Salt Lake City?
Controversial theorist Aubrey de Grey insists that we are within reach of an engineered cure for aging. Are you prepared to live forever?
NASA's newest Mars project is the most ambitious of its kind ever undertaken
After cruising through space for eight months, and plummeting through the Martian atmosphere for seven minutes, the rover reports success
Methane disappears and regenerates every year, according to new study
These 10 people have signed up to die on Mars, in order to live there.
Is that rock brick-red, ochre or salmon-colored?
Anyone looking for evidence of life there had better hope it's not red all the way down.
The industry and the F.A.A. say the climate effects of flying civilians into space will be negligible, but some scientists fret about the accumulation of black carbon in the stratosphere.
Plus adorable echidna puggles
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions
Bogus canals on Mars, alien germs from Venus and the "truth" behind UFOs
With the upcoming release of the major motion picture Europa Report, a couple of Jet Propulsion Lab scientists explain how science fiction has evolved in response to our growing understanding of space.
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
In a fun competition to design a 3-D-printed Martian habitat, three designs are finalists.
The simple tricks to fool Earth-evolved humans into living on Mars time.
The least crazy aspect of this mission is the desire to do it.
Katrina Wolfe, a 24-year-old video game designer, wants to live and die on Mars.
Plus, an awesome photo of agriculture in Saudi Arabia
Geologists are analyzing ancient clues to tell our origin story.
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
Mars has been cold and dry for half its life, but as recently as 500 million years ago, its surface was shaped by water.
Plus your new desktop wallpaper, courtesy of Google Earth
Plus, a Lexus sedan made of cardboard
After staring at the sun for hundreds of millennia, humans still have burning questions about it
These are the 2017 winners of the Vizzies Challenge.
Last December, Felisa Wolfe-Simon announced the discovery of a microbe that could change the way we understand life in the universe. Soon she found herself plunged into a maelstrom of bitter backlash and intemperate criticism. A dispatch from the frontiers of the new peer review
Scientists are not immune to superstitions -- they need lucky legumes
For the first time, scientists can actually observe the remnants of flowing water on Mars.
Last May, a massive tornado leveled Joplin, Missouri. Was it chance, or a warning of things to come?
Scientists may have discovered the oldest free-flowing source of isolated water ever known.
Catch a glimpse
Our favorite images of the week
Looking to boost your science smarts? First test your IQ organ, then follow our 6-point brain regimen. Soon you'll be crunching bogus claims and citing stats with the best.
Bold innovation or terrible idea? Your guide to the experiments that only sound scary—and the lab work you truly should lose sleep over
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
Including Washington, Jefferson, Kennedy and more
For some, the eclipse looked a lot like Pac-Man
Popular Science's fifth annual survey of just how bad it gets
2011 is shaping up to be a great year for science. Here's what to look forward to
Meteorites could carry fossils between worlds, says new research
Our 10 favorite images of the week
Scientists want to know why it's lingering instead of crumbling into the sea.
100 years from now, what jobs will people be hating?
Also: one of the first times humans encountered the microscopic world.
Gatherings, gazelles, and Mars' dwindling atmosphere
Our editors scrounged up some truly bizarre facts.
Some methods that people have suggested for preventing, or stopping, a hurricane--and why they might not work
Scientists can't know for sure if the worlds have water. But they could, making them a potential habitat for life.
Forget algebra homework: try building spaceships, operating a nuclear reactor or listening in to distant galaxies
Stories from the coolest day jobs in the world.
Space rocks are typically tiny and dark. Even if we could spot them, it wouldn't be until they were already upon us, and by then it's too late.
Sciencey junk food for your eyeballs
The discovery of new life on Earth complicates the search for life elsewhere
Plus, a few planets
Newsworthy eye candy