Scientific American.com

A growing body of research suggests cannabis poses risks to the developing brain

What you should know about hantavirus, why PCOS is getting a new name, and how some fish hide in an unusual spot

Genetic analysis suggests interbreeding between two groups of human relatives

The long-tailed pygmy rice rat is the primary host for Andes virus, the type of hantavirus responsible for sickening passengers on the MV Hondius cruise ship

A newfound nocturnal navigation system challenges what entomologists thought they knew about how ants find their way

NASA is starting to paint in some of the details of its planned 2027 Artemis III mission, but key questions, such as who its astronauts will be, are yet to be answered

The “coastline paradox” helped to define fractals, but coastlines themselves turn out to be less fractal than thought

Researchers know very little about how long the Andes version of the hantavirus can remain in human hosts

A strange, tiny fish that resembles the famous Sesame Street character camouflages amid red algae thanks to its flamboyant reddish “hairs”

Varda’s plan to develop medicines in microgravity has its advantages, but it requires a big up-front cost

Hantavirus misinformation is spreading fast. COVID trauma and social media algorithms may be to blame

The filmmaker behind the newly released movie Silent Friend shares the scientific and historical inspiration for its story of botanical consciousness

As more people turn to chatbots for medical guidance, the technology is revealing both its promise and its risks

Some of Earth’s tiniest life-forms inhabit slowly sinking particles of fish poop and debris, playing a crucial role in ocean carbon storage

There are parts of the universe, and of the electromagnetic spectrum, that we’re not covering with our telescopes—but not as many as you might think!

A new book argues that disparities in fibroids, cancer and diagnosis reveal a lifelong gynecologic health crisis for Black women

This snail became the first animal living on deep-sea hydrothermal vents to be added to the IUCN Red List of Threatened Species—it also turns poisonous sulfur into armor

The nation’s top court extended a stay on a lower court order banning telemedicine access to mifepristone, a drug used in medication abortions—but the order sets up a longer legal fight

The El Niño climate event is due to return this year, with U.S. forecasters predicting an 82 percent chance of it coming in May through July and a 96 percent chance for it doing so in December through February 2027

A mathematical ratio could explain why AI-generated art doesn’t evoke awe from viewers