Bones of now extinct species became a haven for bee babies thousands of years ago, scientists report in a first-of-its-kind discovery

The Arctic has changed dramatically in the past 20 years, a new report shows, as temperatures skyrocket and ice rapidly melts

A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S. and other countries

President Donald Trump is expected to sign a defense bill this week that orders an investigation into whether the U.S. military bioengineered Lyme ...

Flex your math muscles with this weekend’s brain teaser. Play now.

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars

This week marks the last chance for backyard astronomers to see interstellar Comet 3I/ATLAS before it races on its journey back to outer space

The sex of many turtles, crocodilians, and other reptiles is determined by the temperature at which their eggs incubate. Global warming could doom ...

Play this crossword inspired by the January 2026 issue of Scientific American.

Popular supplements with billions of “good” microbes really help only a few illnesses, research shows