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.
Indiana has its first competitive gubernatorial primary in 20 years. U.S. Sen. Mike Braun leads the crowded field of Republicans, but polling shows a high percentage of voters are undecided.
Testimony continued in Donald Trump's criminal trial in New York. His lawyers tried to discredit a witness who represented the two women at the center of the allegations against the former president.
Tesla laid off hundreds of people. The company's supercharger network has been a striking success. So why did Elon Musk hit that team with devastating layoffs?