Timothy Heckman Image source: Johns Hopkins Universsity Timothy Heckman is an American astrophysicist who wrote a paper with Guinevere Kauffmann about The Coevolution of Galaxies and Supermassive Black Holes. Quotes by Timothy Heckman in Time OneUnderstanding the link between galaxies and their black holes has become one of the most important problems in astrophysics. More about Timothy Heckman Timothy Heckman at John Hopkins University “The Co-Evolution of Galaxies and Black Holes: Current Status and Future Prospects” by Timothy Heckman Dermot Healy Jo Heims