Artificial intelligence chatbots are no longer a novelty for U.S. teenagers. They’re a habit. A new Pew Research Center survey of 1,458 teens between the ages of 13 and 17 found that 64 percent have ...

A quiet policy change means the government is making fewer bets on long-term science. By Aatish Bhatia, Amy Fan, Jonah Smith and Irena Hwang In the past decade, the National Institutes of Health ...