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.
Apple unveils new versions of its iPad at a time when revenue from its devices are falling and it faces growing competition from places like China. Will this refresh help the company?
NPR's Steve Inskeep talks with Republican strategist Scott Jennings about the challenge to House Speaker Mike Johnson from GOP Rep. Marjorie Taylor Greene of Georgia.
As cease-fire negotiators talk, soldiers and militants keep fighting. Israeli warplanes pound Gaza's southernmost city Rafah, where some 1.4 million Palestinians have sought refuge.