Arizona Public Service plans to temporarily shut off power to east Flagstaff and the Grand Canyon areas Saturday due to high wildfire risk. As a result, both KNAU Classical and News/Talk may intermittently be off the air. Online streaming should not be impacted. Thank you for your patience and continued support!
Questions About The Search For A Coronavirus Vaccine
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.