To celebrate Scientific American ’s 180th anniversary, we’re publishing jigsaw puzzles to show off some of our most fascinating magazine covers over the years. Take a tour here through the covers so ...

A controversial arsenic microbe study unveiled 15 years ago has been retracted. The study’s authors are crying foul ...

For people under the sweltering influence of a heat dome, the weather pattern can be excruciatingly tedious to endure, ...

This is the shape of the classic soccer ball, originally called the Telstar ball and used in the official FIFA World Cup ...

Physicists superheated gold to 14 times its melting point, disproving a long-standing prediction about the temperature limits ...

As large language models like Claude 4 express uncertainty about whether they are conscious, researchers race to decode their ...

My lawsuit in Hawaii lays out the safety issues in OpenAI’s products and how they could irreparably harm both Hawaii and the ...

Heat and humidity will once again smother the eastern half of the country this week, pushing the heat index to dangerous ...

A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just ...

S4, a $900-million cosmology experiment, would answer one of the greatest questions in physics. Instead it’s become another ...

In only its second year, the International Logic Olympiad is already booming as logic becomes more and more crucial in our ...

When researchers discovered evidence of “dark oxygen” last year, the news spread around the world, but the biggest challenge ...