In this episode of Radio Physics, hosts Jack Kravitz and Sasha Fielder sit down with physicist Ryan Foley. The episode dives into gravitational waves, the dramatic collisions of neutron stars and the black holes they can create and how neutron star mergers help scientists measure the expansion rate of the universe, offering new clues about the cosmos’s past and its ultimate fate. Listen to Radio Physics on KDNK.org every third Wednesday at 4:30pm.