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Birds are starting to make their way south for the winter, and you’ve got a front-row seat to the show

When she was just 17 years old, Hannah Cairo disproved the Mizohata-Takeuchi conjecture, breaking a four-decade-old mathematical assumption

Kids crave approval from their peers. Chatbots offer an alternative to IRL relationships, but they can come at a price  

The Krasheninnikov volcano, located less than 150 miles away from the epicenter of Russia’s July 29 earthquake, began erupting on August 3

Can “finitism” possibly describe the real world?

JWST observations of light sources before the first galaxies should have formed are raising new questions about our galactic origins

The lowdown on the Environmental Protection Agency’s move to repeal of the “endangerment” finding. Also, how did a juicy ketchup ingredient help create a starchy tuber?

The magnitude 3.0 earthquake that shook the East Coast came nearly a year and a half after a magnitude 4.8 quake shocked New York City and its surroundings

NASA needs clear support from the White House if we want to win the new space race

Winds from the northwest are blowing cool, dry air—but also wildfire smoke—into the U.S. Midwest from Canada

Federal officials seized 3,000 copies of Scientific American in 1950 in a “red scare” era of attacks on science. The move backfired and offers lessons for today

Scientists are uncovering how spinning black holes launch jets, warp spacetime and shape the cosmos

A conversation with Anthropic’s chatbot raises questions about how AI talks about awareness.

Check out Scientific American’s fiction and nonfiction book recommendations for July

The immune system senses damage to cell membranes caused by pore-forming proteins and mounts a response

A relatively small detector caught neutrinos from a nuclear reactor using a technique known as coherent scattering

When people viewed virtual avatars with coughs or rashes, their brain triggered an immune response

About nine million years ago, a hybridization involving the lineage of another farmers market star gave rise to the modern-day cultivated potato

A lighting flash that spanned from East Texas to an area near Kansas City in 2017 is officially the longest lightning strike ever measured, according to the World Meteorological Organization

As Earth spins through space, its rate of rotation changes. Here’s why