
Some voting districts are tilted intentionally toward one party or another—a factor in the midterms. Geometry plays a critical role in gerrymandering

Some voting districts are tilted intentionally toward one party or another—a factor in the midterms. Geometry plays a critical role in gerrymandering

The findings, which were made in mice, may offer a new way to prevent a common chemotherapy side effect that can last well beyond treatment

Sermorelin, tesamorelin and other growth hormone peptides are being touted as antiaging elixirs, but what evidence is behind those claims?

In a critical maneuver on Thursday, the mission successfully deployed its two science orbiters—beginning the final phases of its arrival at Mercury

Giving old mice semaglutide—commonly sold as Wegovy or Ozempic—extends their lifespan remarkably, a new study finds

Author Sarah Pierce explores dating apps, loneliness and human connection through a novel about a corpse-matching algorithm

The endangered animals displayed a first in raccoons and their kin


The world’s biggest dark matter search saw a particle it cannot explain

The world is set to blow past the Paris Agreement’s longtime threshold “within the next few years,” according to a new report

The Trump administration has so far been silent on flu, COVID and RSV vaccine guidance for the coming season, even as these diseases kill thousands of people every year

Seasonal changes have more effects on your biology and behavior than you might realize

The strange structure appears to have formed recently, but nobody can explain exactly why

A floating island in a Canadian reservoir moved more than 30 kilometers across the water—here’s why

Experts explain why a monsoon storm turned so deadly

After one of the worst natural disasters in the region’s history, attention is turning to the looming super El Niño

The Nancy Grace Roman Telescope is headed toward a Lagrange point, a critical position in outer space where gravitational forces behave in specific ways
“I believe it is essential to start working hand-in-hand with AI as a global community of researchers. The main advantage is the twist on the "isolated genius": many isolated geniuses working together become much faster and smarter. If we add AI to this as the ultimate tool to solve everything, we would create an ecosystem that would guide us directly…”
— inpalomaresx

A recent CDC analysis says that, between 2016 and 2024, the rate of high blood pressure among pregnant women rose by 73 percent

Scientists named this oddball creature after the Demogorgon from Stranger Things

Cybersecurity experts are volunteering to keep America’s utilities safe from attacks

Math Puzzle: A puzzling picture
Flex your math muscles with this weekend’s brain teaser. Play now

The proposed changes, which would have given control of science funding to appointed bureaucrats, were criticized widely by the scientific community

Play a bonus science crossword that ties into even more stories from the September 2026 issue of Scientific American.

The Nancy Grace Roman Telescope will probe dark matter and dark energy, discover exoplanets and study stars

Around 15,000 satellites currently circle Earth, but nearly two million satellites are planned to launch in coming years. This precipitous rise will bring Internet access to many who lack it but could also have dangerous consequences for astronomy, our planet's atmosphere—and the future use of Earth orbit.
Elsewhere in the issue: The Spy Telescope Hunting for Dark Matter | What Really Happened on Easter Island? | How Clean Tech Became Unstoppable

NASA’s Roman Space Telescope will open a whole new window on the cosmos. Here are 10 things it’s likely to show us

In a near-total lunar eclipse, the moon turned red-orange for viewers in North America, Europe and Africa

The human brain has upward of 86 billion neurons, connected by some 100 trillion synapses

The disaster has claimed hundreds of lives, and at least 1,400 people are missing

Spirals, ellipticals, irregulars, oh my!

Avalanches like the one that devastated parts of Nepal and Tibet are becoming more common thanks to climate change. Here’s where else is at risk

Astronomers are lining up to leverage NASA’s soon-to-launch Nancy Grace Roman Space Telescope, which boasts capabilities unlike any previous off-world observatory

In a clinical trial, people with obesity saw clear health benefits on the keto diet that they didn’t see on two other popular eating regimens

After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries