Scientific American Content: Global

A federal court’s decision deals a legal blow to the open Internet

Attention deficit hyperactivity disorder symptoms worsen right before and during a period, a new study finds, and this could impact treatment

The Trump administration may undermine U.S. leadership and the international system of global health cooperation. Pandemic preparedness, resilient health systems and reproductive rights will suffer worldwide

It seems like time slows in an emergency or in the heat of a sports match. Here are a few explanations for this altered perception

Nature can affect our nervous system and diversify our microbiome—and you don’t need to go on a hike to reap the benefits.

The nature of the Santa Ana winds makes them perfectly suited to spreading flames. The destructive Palisades Fire is the latest example

Louisiana has reported the first U.S. fatality from avian influenza. Most of the country’s human cases have been mild

Rising temperatures might be altering the atmosphere in ways that cause more extreme winter weather, scientists say

Blasts of Arctic air have brought frigid temperatures that are much colder than normal to parts of the U.S., but that “normal” background is warmer than in the past

A government efficiency panel threatens U.S. government competence and constitutional underpinnings, warn two administrative science experts

Transplanted chloroplasts endured two days inside animal cells—and got to work

A common respiratory virus called human metapneumovirus, or HMPV, has been spreading in some countries in Asia, including China, India, Malaysia and Kazakhstan. Here’s what we know

Thousands of notoriously difficult problems in computer science are actually the same problem in disguise

Richard Alley, Lawrence Edwards and David Tilman were among the two dozen honorees who received the National Medal of Science or the National Medal of Technology and Innovation last week

A prime number study charts the limits of detection

Propaganda works, is the real upshot of a survey showing lingering post-pandemic distrust of science

The science of the sun and its effects on the solar system is a sprawling discipline that expects a very exciting 2025

Bits of DNA from mitochondria can skip surprisingly fast into our genome and may reduce lifespan

The familiar zodiac constellations are defined by Earth’s motion around the sun, but they don’t define your fate

Artificial versions of nanoscale soccer-ball-like structures called brochosomes might be used to make new forms of military camouflage, self-cleaning surfaces or hydrogen fuel

According to a tenet scientists call the cosmological principle, our place in space is in no way exceptional. But recent observations could overturn this long-held assumption

Bowhead whales were known to live up to 200 years, and a new study finds that southern right whales may live up to age 150 if they aren’t being hunted

Pearl Young joined the National Advisory Committee for Aeronautics in 1922, working across departments before becoming a technical editor

In a new book, a science journalist recounts the story of a lifesaving treatment for infection that scientists broadly dismissed until recently

Will still more auroras ring out 2024, a year marked by the celestial displays?

Future-oriented thinking, rather than careening from moment to moment, can help parents have more meaningful moments with their children

European countries and Australia have rolled out front-of-package nutrient profiling. Color-coding or star ranking systems let shoppers make quick choices about healthy foods

Repeated exposure to outrage-inducing news or events can lead to emotional exhaustion. An expert who studies online outrage says there are ways to cope

Former president Jimmy Carter’s charity has helped transform Guinea worm from a disease that used to infect millions to one that infects fewer than a dozen

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between humans

Whole grains and fruits are in, and added sugar is out. That’s going to change what’s on a lot of cereal boxes and other things

Street medicine providers and homeless outreach workers who travel into Las Vegas’s drainage tunnels have noticed an uptick in the number of people living underground, and it can be difficult to persuade them to come aboveground for medicine and treatment

Inside the fiercely competitive Federal Duck Stamp Contest, part of the wildly successful conservation program that has preserved millions of acres of waterfowl habitat

A gun safety check of where your child is going for a playdate or sleepover may save lives

We need less uproar over everyday drones and more critical attention about ones near airports and other restricted airspace

Twenty years ago today a magnetar’s epic tantrum made our planet ring like a bell from tens of thousands of light-years away

All of statistics and much of science depends on probability—an astonishing achievement, considering no one’s really sure what it is

A planned octopus farm is facing opposition. Here’s why

Infants who experienced rationing had a meaningfully lower risk of diabetes and hypertension decades later

Mapping explorers of Wikipedia rabbit holes revealed three different styles of human inquisitiveness: the “busybody,” the “hunter” and the “dancer.”

A mixture of colder temperatures, lower humidity and more time spent indoors could explain the uptick in cold viruses during the winter holidays

Making cookies is time- and labor-intensive. Here’s how a little math can make it easier and less wasteful this holiday season

Researchers are learning what causes Alice in Wonderland syndrome, a rare neurological condition that can appear to warp bodies, time and reality itself

Opt for lighter, cheaper wine to dodge headaches this holiday season

The Parker Solar Probe will swoop just 6.1 million kilometers above the sun’s surface on Christmas Eve. Scientists are thrilled at what we might learn

Climate change may influence seismic activity as melting glaciers reduce pressure on quake-prone faults

The full potential of public opinion polling lies in its ability to illuminate deeper societal trends beyond electoral forecasts

Researchers seeking better bandages are creating extremely thin fibers of starch

We’re closing out the year with a roundup of the science stories that stood out to our editors in 2024.

Feminism gives us the analysis, tools and movement to create a better climate future for everyone. It’s time to embrace it