Explore Scientific American’s most fascinating magazine covers ...

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that ...

A new preprint field study reveals that New York City’s rats aren’t just survivors—they’re talkative city dwellers with their own hidden nightlife. Mapping their movements and conversations could offe ...

Forensic scientist Michael Haag explains how laser scanners could be used to lock down the crime scenes where Charlie Kirk ...

A child in Los Angeles County has died from a rare but always fatal brain disorder that develops years after a measles ...

Scientists will not find a simple answer to how autism arises, despite Robert F. Kennedy, Jr.’s promise to announce its ...

Whether intermittent fasting helps anyone is unclear, but it does have known health risks. Who can try the dieting trend, and ...

So many major unknowns remain that unease about the program is mounting among many policymakers, missile defense experts and ...

The Artemis II mission is part of NASA’s plan to resume deep-space exploration. In the Artemis I flight in 2022, an SLS ...

Researchers tested 12 “magic mushroom” edibles. None contained psilocybin, but most contained undisclosed ingredients, ...

Scientists are beginning to take clear sides on whether or not to use human-made interventions to preserve polar ice, such as ...

Spacetime ripples from a black hole collision across the cosmos have confirmed weird aspects of black hole physics ...