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.
Peter Daszak of the investigative team sent to Wuhan says the farms were probably where the coronavirus first jumped from bats to another animal before infecting humans.
The tough sanctions that former president Trump slapped on Iran are still in place and President Biden has a few options to use them to bring Iran back to the nuclear deal.
NPR's Ailsa Chang talks with sportswriter Christine Brennan of USA Today about the NCAA COVID-19 rules. She points out that the women's team is playing in Texas, which has no mask mandate.
Residents of Colorado and neighboring states are digging out after one of the heaviest snowstorms on record. But it won't make more than a dent in alleviating the region's severe drought.