04/10/19 Lawrence Rudnick from the U of M gives Joe a lesson on the discovery of a black hole

04/10 Lawrence Rudnick Distinguished Teaching Professor for the Minnesota Institute for Astrophysics School of Physics & Astronomy for University of Minnesota (yes very smart and very credible) he helps the crew understand the discovery of a black hole. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.