This summer, at a gathering at the University of Michigan,assembled a Top Ten list of unsolved physics problems. NPR's DavidKestenbaum, with the help of two physicists, lays out these questions.
Iranians could call abroad on Tuesday for the first time since communications were halted during a crackdown on nationwide protests in which activists said at least 646 people have been killed.
Defense Secretary Pete Hegseth said Monday that Elon Musk's artificial intelligence chatbot Grok will join Google's generative AI engine in operating inside the Pentagon network, as part of a broader push to feed as much of the military's data as possible into the developing technology.
A federal judge ruled Monday that work on a major offshore wind farm can resume, handing the industry at least a temporary victory as President Trump seeks to shut it down.
More than 2,000 federal immigration agents are in Minnesota, and that number is expected to increase. On Monday, an NPR reporter witnessed multiple instances where immigration agents drove around Minneapolis — and in parking lots of big box stores — and randomly questioned people about their immigration status.