European Space Agency astronaut used an International Space Station treadmill to march 26.2 miles (42.2 kilometers) to the ...

On Earth, human sperm tend to know where to go when it comes to fertilizing an egg in utero. But that may not be the case in ...

Sperm whales are known to socialize, but scientists were stunned when they saw a group of sperm whales gather as one of them ...

Security feeds and traffic cameras have helped guide some of the most audacious targeted killings in modern history. Security ...

Skin conditions such as psoriasis often flare up in the same spots throughout one’s life. Now scientists think they know why ...

Participants in the new study, which was published today in Science, preferred the sycophantic AI models to other models that gave it to them straight, even when the flatterers gave participants bad ...

The Arctic sea ice maximum this year effectively tied for the lowest ever on record, with major implications for polar ecosystems and global warming ...

People are buying helmets, face masks, vests and beds that emit long-wavelength light. Beneath the hype, there is some ...

More than 1,500 mathematicians are demanding that their field’s most prestigious meeting be moved from the U.S.

NASA’s Swift space telescope is doomed to burn up in Earth’s atmosphere later this year. A daring mission to boost it to ...

A start-up has surprised the scientific community with a breakthrough: translating a modern proof into a programming language ...

Climate scientist Kate Marvel talked to Scientific American about her decision to leave NASA amid federal government turmoil ...