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

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 ...

China’s Tianwen-3 Mars sample return mission could bring Red Planet rocks back to Earth as early as 2031—years ahead of competing U.S.-European efforts ...