Joe Palca is a science correspondent for NPR. Since joining NPR in 1992, Palca has covered a range of science topics — everything from biomedical research to astronomy. He is currently focused on the eponymous series, "Joe's Big Idea." Stories in the series explore the minds and motivations of scientists and inventors. Palca is also the founder of NPR Scicommers – A science communication collective.
A federal appeals court ruled Friday to uphold a lower court's temporary order blocking the Trump administration from conducting indiscriminate immigration stops and arrests in Southern California.
A three-day National Transportation Safety Board hearing on the deadliest U.S. aviation accident in decades dug into problems with altimeters, chopper routes and the busy Washington, D.C., airspace.
A coalition of 16 states and D.C. argue in the lawsuit that the Trump administration is trying to effectuate a national ban on gender-affirming care for youth by intimidating hospitals and doctors.