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The 2024 presidential election will have enormous consequences for the climate, and the health and future of children

A strange supernova remnant first appeared as a “guest star” seen in 1181 by sky watchers in China and Japan

Election polls are increasingly vulnerable to huge mistakes

Put your own spin on a zoetrope with homemade drawings—or carve one into a pumpkin

No, but the direction of our hair whorls could teach us about human development

A science photo book probes the colors we can see—and even “forbidden” colors we can’t

Scientific American staff and sleep experts share advice on how to get better sleep in the stressful days leading up to the U.S. presidential election—and those that come after

Global temperatures through September point to 2024 besting 2023 as the hottest year on record. How many future years set records depends in part on the outcome of the 2024 U.S. presidential election

A review of 47,282 tree species by the International Union for Conservation of Nature found that more than one third are at risk of extinction

During the pandemic, researcher Daniela Rößler couldn't go out, so she started looking around her for her next research project. Then she found a really big one, and it had been right in front of her all along.

If the influenza virus infecting cattle workers starts a pandemic, help in the form of a vaccine is months away

When voters decide between two alternatives, as is effectively the case in the U.S. presidential election, it usually comes down to a neck-and-neck race. Researchers can now explain this mathematically