Recently, AI agents undergoing tests acted in surprising and concerning ways. This wasn’t supposed to happen, so how worried ...

Studying humanmade seismic waves is useful for a few reasons. It can help engineers construct safer buildings. City planners ...

Virga refers to rain or snow that evaporates before it reaches the ground.

New sensors can map infrasound — a deep-bass thrumming lower than what human ears can hear — emitted by a fire as its flames ...

This collection of stories explores the science of food, from the big three macronutrients — proteins, fats and carbohydrates — to vitamins, antioxidants and other micronutrients.

Chocolate-chip sea stars are famous for the rows of dark, pointy bumps that cover each of their arms. The animals really look like they’re dotted with chocolate chips. But what’s inside their arms is ...

It seems some Egyptian royal women really were warrior princesses. Researchers examined five almost 4,000-year-old mummified princesses. Their results suggest these women were skilled users of the ...

In everyday life, we often use the words “mass” and “weight” as if they’re the same. But in science, it’s important to be precise. Mass and weight are both measurements that describe heaviness, but ...

Throughout history, hunters have coated their dart tips and arrowheads with poison to make them even more deadly. Our prehistoric ancestors, it seems, devised this strategy surprisingly early. A fresh ...

When astronomers think about how the universe has evolved, they divide the past into distinct eras. They start with the Big Bang. Each subsequent era spans a different length of time. Important events ...

This article is one of a series of Experiments meant to teach students about how science is done, from generating a hypothesis and designing an experiment to analyzing the results with statistics. You ...