Updating the samples from asteroid Bennu

Scientists from around the world have spent two years examining material brought back to Earth from the asteroid Bennu by the University of Arizona-backed Osiris REx mission. U of A planetary scientist Jess Barnes discusses some of the findings from the Bennu samples, including how one of the minerals resembles ordinary kitchen table salt. Jess Barnes spoke with Tim Swindle, professor emeritus of Planetary Science at the University of Arizona.