Global map of Mars showing a growing dust storm as of June 6, 2018. The map was produced by the Mars Color Imager (MARCI) camera on NASA's Mars Reconnaissance Orbiter spacecraft.
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.
Divides over what GOP priorities should be ahead of this fall's midterm elections are testing the relationship between President Trump and Senate Majority Leader John Thune.
NPR's A Martínez asks Republican political consultant Doug Heye about whether Trump is losing support among congressional Republicans after the Senate voted to limit his war powers on Iran.