The Comanche were not just another tribe on the frontier. They controlled vast territory and dictated who could pass through it. This video explains how they fought, lived, and maintained power for ...

Nearly 40% of new cancer cases worldwide are potentially preventable, according to one of the first investigations of its kind, which analysed dozens of cancer types in almost 200 countries. Cancer ...

PBS will soon highlight a pioneering musician whose band is still based in a Germantown rowhome. Sun Ra, the late bandleader of the Sun Ra Arkestra, is the subject of an episode of "American Masters" ...

A massive reference book of mental health conditions known as the “bible” of psychiatry is going to change. If you're enjoying this article, consider supporting our award-winning journalism by ...

TikTok has finalized a deal to create a new American version of the app, avoiding the looming threat of a ban in the U.S. that has been in discussion for years. The social video platform company ...

Get an x-ray, and you get a small dose of radiation to visualize your bones and body structures to help you medically. Buy a smoke detector, you’re inviting a tiny source of radiation, americium-241, ...

Before trees came along some 400 million years ago, our planet’s landscape was dominated by enigmatic, spire-shaped life-forms that towered more than 25 feet above the ground. Their trunklike fossils ...

This article was made possible by the support of Yakult and produced independently by Scientific American’s board of editors. After a slip on the ice, a sports injury, even surgery, most people’s ...

In “Billionaire Science, for Better or Worse” [From the Editor], David M. Ewalt suggests that with cuts to government funding, “many researchers are going to have to rely on business—and, yes, ...

This graphic is part of a special report on consciousness. Read the full feature here. Theorists have proposed many explanations for consciousness. They are startlingly diverse, with different goals, ...

Dogs can have wildly different personalities, which often vary by breed and size. Although individual temperament matters most, larger trends can help predict which pooch will be meek and mild and ...