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- SCIENTIFIC AMERICAN19 HOURS AGO

Math Puzzle: A puzzling picture
Hang a painting poorly in this math puzzle
15 HOURS AGO
Most People Don’t Think About Culverts. Their Failure Can Be Deadly.
Scientists simulated what happens when the pipes and tunnels that divert rainwater fail. In one scenario, 30 percent of local residents couldn’t reach an E.R.
- SCIENTIFIC AMERICAN14 HOURS AGO

Do universal free lunch programs affect students' academic performance?
Experts say free lunch for every child improves academic performance. Whether it does is murky, according to a Scientific American analysis, but there are definite financial and social benefits.
- SCIENTIFIC AMERICAN13 HOURS AGO

The U.S. has weapons in space
A high-ranking official announced yesterday that the U.S. military has deployed weapons into orbit to counter threats from Russia and China
- SCIENTIFIC AMERICAN14 HOURS AGO

Which million-dollar math problem could AI solve next?
After an OpenAI model presented a possible solution to the Navier-Stokes problem, mathematicians are speculating about which major unsolved question could be resolved next
- SCIENTIFIC AMERICAN12 HOURS AGO

How pizza can solve this unusual math puzzle
Moser's circle problem can be used to divide a pizza into one, two, four, eight, 16 or 31 slices. It's a perfect example of how the numbers in a sequence aren't as clear-cut as they may first appear
12 HOURS AGO
Disaster Survivors Sticking Together
We found grace, humanity and friendship in the stories of disparate Americans hit by climate chaos.
15 HOURS AGO
Harold Freeman, Who Helped Remove Barriers to Cancer Treatment, Dies at 93
He developed a program that became a model for hospitals around the world, making it easier for poor Black patients to navigate an onerous bureaucratic system.
9 HOURS AGO
A T. Rex Walked Here: Teacher Finds Rare Footprints in North Dakota
Kent Hups, a high school science teacher in Colorado, discovered a 23-foot trackway of fossilized dinosaur footprints, which offer a glimpse of how the apex predator moved 66 million years ago.
- SCIENTIFIC AMERICAN10 HOURS AGO

What even is an AI kill switch?
Amid renewed calls to slow frontier AI, experts are considering what an emergency stop would entail—and who would decide when to use it
7 HOURS AGO
Is There Anything Google’s Fruit Fly Brain Can’t Do?
Models of the insect’s nervous system have been trained to solve a Rubik’s Cube, play video games and even parallel park a car.
16 HOURS AGO
FEMA Could Still Lose More Jobs Despite Court Ruling
A plan to halve the agency’s sprawling work force was illegal, a judge ruled. But the court is not blocking other FEMA cuts.
A DAY AGO
Whether Chemistry or the Cosmos, Always Looking at the Bigger Picture
The Times’s Science section is introducing new columns, projects and more as part of its online relaunch.
16 HOURS AGO
Exoplanets Offer Clues to What Lies Beyond Our Solar System
Thousands of planets have been discovered beyond our solar system, offering clues to where life might thrive and whether Earth is truly unique.
- SCIENTIFIC AMERICAN4 HOURS AGO

The hole in the ozone layer is healing, but extreme weather may be slowing progress down
Climate change, driven by humans, is making extreme weather more commonplace