The mysteries of black holes will be unraveled at Fiske Planetarium on the campus of the University of Colorado at Boulder on Friday, Sept. 20, and Tuesday, Sept. 24, at 7:30 p.m. Professor Andrew Hamilton will present his live star show, "Black Holes and Relativity," to kick off Fiske Planetarium's fall 2002 schedule of monthly astronomy talks. The live talks are given by CU-Boulder professors and guest lecturers.