Amid simmering anxiety about the future of federally funded science, the U.S. government has quietly withdrawn support for cosmology’s next premier project, an experiment that would have given us the ...

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

As large language models like Claude 4 express uncertainty about whether they are conscious, researchers race to decode their inner workings, raising profound questions about machine awareness, ethics ...

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

Lieke van Son is a research fellow at the Center for Computational Astrophysics of the Flatiron Institute and at Princeton University. She is set to join Radboud University in the Netherlands as an ...

Ozzy Osbourne, lead singer of Black Sabbath, has died at age 76. He said he had been previously diagnosed with a form of Parkinson’s disease linked to the gene PRKN ...

To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most fascinating magazine covers over the years. Take a tour here through the ...

A SkyWest pilot’s last-second decision could have prevented a collision that air-traffic controllers may not have foreseen ...

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 ...

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

A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just ...