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

Quark-gluon plasma, a bizarre state of matter that mimics the early cosmos, is the hottest thing ever made on Earth ...

The U.S. Office of the Director of National Intelligence released long-promised records related to vanished pioneering ...

Lone star tick bites are the most common cause of alpha-gal syndrome, which causes severe allergic reactions to red meat ...

The oldest RNA ever reported until now came from a 14,300-year-old “wolf” puppy frozen in permafrost. But when Mármol-Sánchez ...

City-dwelling raccoons seem to be evolving a shorter snout—a telltale feature of our pets and other domesticated animals ...

The Shenzhou 20 spacecraft was too damaged to bring its crew home from China’s Tiangong space station. Those astronauts have ...

Blue Origin successfully launched—and partially landed—its New Glenn rocket on Thursday. The achievement marks a major step ...

Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still ...

A trove of e-mails from convicted sex offender Jeffrey Epstein was released by a congressional committee on Wednesday ...

Cities’ steep terrain can discourage cycling. But the study showed that climate—even frosty winters, scorching summers and ...

Computer scientist Yoshua Bengio has become the first person to have their work cited more than one million times on the ...