To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most ...

Physicists superheated gold to 14 times its melting point, disproving a long-standing prediction about the temperature limits ...

As large language models like Claude 4 express uncertainty about whether they are conscious, researchers race to decode their ...

The brains of healthy people aged faster during the COVID-19 pandemic than did the brains of people analysed before the ...

High humidity and low overnight temperatures will put tens of millions of people under heat alerts over the course of the ...

When large masses of water are moved from one place to another, this changes the shape of Earth and leads to a phenomenon ...

Heat and humidity will once again smother the eastern half of the country this week, pushing the heat index to dangerous levels for tens of millions of people. In the Midwest, the humidity will be ...

S4, a $900-million cosmology experiment, would answer one of the greatest questions in physics. Instead it’s become another cautionary tale of pursuing big science amid shrinking budgets ...

The largest yet study on a four-day workweek included 141 companies, 90 percent of which retained the arrangement at the end ...

My lawsuit in Hawaii lays out the safety issues in OpenAI’s products and how they could irreparably harm both Hawaii and the ...

Jason Jaacks is a filmmaker and photographer whose work explores the natural world and our place in it through the lens of science, natural history, and exploration. As a visual journalist, he has ...

A declaration of dissent from past and present NASA employees warns that science and safety are at risk and joins similar ...