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 ...