Scientific American Content: Global

Quark-gluon plasma, a bizarre state of matter that mimics the early cosmos, is the hottest thing ever made on Earth

People with this autoimmune disease face much shorter life expectancies in lower-income nations.

The U.S. Office of the Director of National Intelligence released long-promised records related to vanished pioneering aviator Amelia Earhart. More records are promised on a rolling basis

Thousands of years ago, a space rock hit what is now China, leaving a bowl-shaped crater some 900 meters wide

Lone star tick bites are the most common cause of alpha-gal syndrome, which causes severe allergic reactions to red meat

The same region on the sun that’s responsible for this week’s stunning auroral display just erupted in another powerful solar flare early on Friday morning

NASA’s presumptive next leader wants to outsource more of the space agency’s interplanetary science. The newly launched ESCAPADE mission to Mars offers a sanity check for those plans

RNA has been extracted from an ancient woolly mammoth, providing insight into its last moments on Earth

The Shenzhou 20 spacecraft was too damaged to bring its crew home from China’s Tiangong space station. Those astronauts have now returned via the Shenzhou 21 craft, leaving its crew without a return ride until the nation sends a new spacecraft to the station

City-dwelling raccoons seem to be evolving a shorter snout—a telltale feature of our pets and other domesticated animals

Data from 11,587 cities show that, rain or shine, some places are just better for bikes and pedestrians

Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still sparks confusion

From COVID shots to cancer therapy, mRNA is changing medicine.

After delays, Jeff Bezos’s rocket company successfully launched a NASA mission to study Mars on Thursday

Nearly two million U.S. turkeys have died from bird flu in recent months. An agricultural economist explains what ongoing outbreaks could mean for Thanksgiving meals

A surprising diversity of dog shapes and sizes evolved long before the Victorians began making modern breeds

A trove of e-mails from convicted sex offender Jeffrey Epstein was released by a congressional committee on Wednesday

The milestone makes machine-learning trailblazer Yoshua Bengio the most cited researcher on Google Scholar

After studying mice in the 1910s, Maude Slye concluded that vulnerability to cancer was hereditary. She thought she had a solution to eliminate it, but she made some crucial mistakes

Oceanographers hope to find otherworldly ecosystems at hydrothermal vents on the Arctic seafloor

An 18-year dataset from the North Sea reveals that rogue waves are not freak accidents but particular products of ordinary swells stacking up—an insight that could make prediction possible

“Kryptos has not been solved,” said artist Jim Sanborn after releasing his parting clues to the “K4” section of his sculpture puzzle

Ten years after the Paris climate agreement, the limited progress we’ve made in reducing global warming means that there will be less extreme heat in the future than there would be without the accord

Early findings indicate that Epstein-Barr Virus may also cause the autoimmune disease lupus

The International Energy Agency says weak climate action and energy security fears are effectively delaying peak fossil fuel consumption

A severe geomagnetic storm brought spectacular auroras to much of the U.S. on Tuesday night

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years later

Science writer David Berreby shares his personal journey with griefbots and discusses how they can offer unexpected comfort, insight and connection in the wake of loss.

The sun just spat out several coronal mass ejections that could trigger a serious solar storm on Wednesday

A large international study suggests that being multilingual can slow down cognitive aging

There are six people living on the Chinese space station Tiangong at the moment, and the plan to bring three of them back is in progress

A planned supersized floating wind turbine with two spinning heads will generate nearly double the amount of energy as the current record-holder

Canada lost its official measles elimination status after a year of continuous transmission

In a reversal, the Food and Drug Administration has removed black box warnings on hormone replacement therapies for menopause

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind

New research aims to tease out what exactly is happening in the brains of people with schizophrenia who have auditory hallucinations

Researchers spot the “tipping point” before mathematicians’ moments of discovery

Kendra Pierre-Louis steps in as interim host and dives into the science behind why some foods—especially mayonnaise—can gross us out.

The popularization of the term “slop” for AI output follows a centuries-long pattern where new tools flood the zone, audiences adapt and some of tomorrow’s art emerges from today’s excess

The first image from the Vera C. Rubin telescope reveals a previously unnoticed feature of the galaxy M61 that may explain its mysterious properties

James Watson’s work on the discovery of the double-helix structure of DNA led to a revolution in biology and genetics

An early cold snap will chill much of the U.S., potentially breaking records in the Southeast

Three Chinese astronauts will likely return safely to Earth after a reported space-junk strike. But the incident highlights the growing risk of orbital debris

“I have no problems flying,” says one expert about the FAA’s plan to reduce flights by 10 percent at 40 airports nationwide. “I would get on an airplane tomorrow”

This finding is the first documented case of colonial behavior between two solitary species of spider

Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why

Migraine and cluster headaches affect millions—yet research remains surprisingly thin.

Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.

The latest report shows that the estimated number of endangered vaquita porpoises has modestly increased

A noninvasive imaging technique can translate scenes in your head into sentences. It could help to reveal how the brain interprets the world