A physics-based sperm-screening technique could offer a more accurate at-home test for people trying to conceive ...

As president, Donald Trump pretty much checks all the warning boxes for an autocrat. Last September Scientific American warned of Trump’s “nonsensical conspiracy fantasies,” that he “ignores the ...

AI chatbot companions may not be real, but the feelings users form for them are. Some scientists worry about long-term ...

In 2024 disasters displaced a record number of people both globally and in the U.S. About 11 million U.S. residents had to ...

Astronomical amounts of energy could be extracted from black holes—to build a gigantic bomb, for example. Experts have now ...