Evidence shows that Medicaid improves people’s health and is particularly vital for babies, older people in need of long-term ...

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

Four research firms project that the Republicans’ One Big Beautiful Bill Act will raise greenhouse gas emissions and likely ...

Canceled grants and slashed budgets are disproportionately affecting junior health researchers, dealing a major blow to the ...

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

Breakthroughs from two rival experiments, Germany’s Wendelstein 7-X and the Joint European Torus, suggest the elusive dream of controlled nuclear fusion may be within reach ...

We typically imagine echolocation as “seeing” with sound—experiencing auditory signals as a world of images like the ones our ...

So if procrastination is so costly, why do so many people regularly do it? Years of research have provided a reasonably comprehensive list of psychological factors that relate to procrastination ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

AI could be used to comb through electronic health records and warn vulnerable people about dangerous heat waves ...

Links to the U.S.’s most comprehensive climate reports—the National Climate Assessments—disappeared from the Internet on ...

To achieve its ambitious plans for missions to the moon and beyond, Russia needs other spacefaring nations as partners. But ...