On this episode of Radio Physics, astrophysicist Cole Miller, joined by intern Sasha Fielder, discuss black holes—from the formation of early, very massive black holes to black holes orbiting black holes and the gravitational waves they produce, as well as multi-messenger astronomy, neutron stars, tidal forces, and discoveries from LIGO and VIRGO, along with insights gained from working with NASA’s NICER mission. Listen to Radio Physics on KDNK.org every third Wednesday at 4:30pm.