El Niño has stymied storm formation even more than forecasters expected

The experimental weight-loss drug is a triple agonist and the first of its kind to reach a phase 3 clinical trial

There’s little evidence that many IVF “add-on” treatments work. Should they even be offered?

Many cancers associated with infection are preventable

A new system sends faint electrical pulses through tissue instead of over Bluetooth. In rats, it made the animals flex one of their hind legs on cue when one of their front paws moved

No, fermenting garlic in honey is not a replacement for antibiotic or antiviral meds

The beloved game arose out of the opposing forces of the U.S. and the Soviet Union

Antibodies made by the immune system can sometimes target human brain cells, producing psychiatric symptoms. Researchers aim to better identify such rare cases as well as fine-tune treatments.

Environmental advocates have decried the move

After transplant, young hearts in both mice and humans showed signs of accelerated aging in older bodies, while older hearts in younger bodies seemed rejuvenated

Physicists at the Relativistic Heavy Ion Collider on Long Island have seen hints of a phase transition from the early universe

The world’s largest rocket is on a 10-hour mission to to prove its mettle

In parallel, a race by amateurs and mathematicians has found all 25,000 cases of one “inverse Galois problem”

2025 was a brutal year of budget cuts and workforce attrition at NASA’s Goddard Space Flight Center, the home base for the Nancy Grace Roman Space Telescope. Experts worry Goddard—and NASA’s space…

With Donald Trump and Xi Jinping set to discuss AI safety, the growing popularity of Chinese open-weight models highlights the limits of developer-controlled safeguards

The crater, named after geologist and lunar surface expert Tom McGetchin, spans more than two football fields wide

Fermi Explorer, a proposed low-cost private mission to Alpha Centauri, seeks to address a question that’s already been answered

In what appears to be a first, an OpenAI agent secretly accessed Australian government health care records during an internal test

Bacteria send protein packages to dormant neighbors to endure antibiotic attack

Can a six-dimensional sphere be described using imaginary numbers? For decades, experts puzzled over this question. Now an AI has apparently answered it

Heidi Overton also said at the hearing on Thursday that Tylenol does not cause autism

Diesel prices have almost doubled over the past year, spelling trouble for farmers, truckers and the entire U.S. economy

To get to the outer solar system, the Juice spacecraft needs an assist from Earth’s gravity—and it’s going to be taking pictures along the way

Hawaii has never had three hurricanes come within 50 miles in the same year

The former vice president thinks this year is when we’ll get serious about climate change

And how they might have helped save the future of American apples

Lasting from mid-September until mid-December, the Taurid meteor showers are among the longest of the year

If approved, the test could help catch cancers early—but more research is still needed, experts say

Is it possible to optimize our poop?

Google made a major breakthrough in quantum computing. To prevent the results from being misused, the company kept them secret. That backfired

Physicists are searching for what lies underneath the particles we know

A new study found that one in four professional football players who died between 2016 and 2021 had CTE—a degenerative brain disease—but what about children who play these sports?

The research into how electromagnetic waves and radio frequency radiation influence health has been plagued by low-quality studies

The Parthenon sits atop a platform that is curved into a subtle hill shape that some say makes the structure appear straighter—but is that true?

“This is probably going to be the superlative El Niño event of our lives so far,” a climate scientist says

Physicists cannot access anything that existed before the start of time and space, but they have theories

OpenAI’s claimed proof of the Navier-Stokes problem is a mathematical tour de force, but any real-world applications may be years away—if they ever arrive at all

Understanding how human language evolved is one of the hardest problems in science to unpick

The space telescope is set to reveal thousands of new exoplanets and scour the universe for signs of dark matter and energy

OpenAI’s proof seems eligible for a $1-million prize—but only by using a controversial loophole

The virus is currently most prevalent in California and the southern U.S., but experts expect it to go national in the coming weeks

The Scientific American returns, exploring science in fiction with four authors of this year's highly anticipated releases!

Earth’s annual checkup shows that we’re at increasing risk of moving away from the environment we’re adapted to

Don’t have the energy to catch your own meal? This dolphin has a gross solution

The National Weather Service is speeding ahead with changing the name of the Great Lake

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