An American man is guaranteed to make the final of the U.S. Open after Ben Shelton's win over defending champion Carlos Alcaraz in the quarterfinals. Shelton faces American Frances Tiafoe next.
A researcher at the AI company Anthropic resigned with a warning that the entire artificial intelligence industry is designing tools that humans will soon lose control of.
NPR's Scott Detrow talks with theoretical astrophysicist Priyamvada Natarajan of Yale University about a strange blip recorded by a dark matter detector in South Dakota and what the fluke could mean.