PoS(ICRC2019)1045 © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). http://pos.sissa.it/ QuarkNet Coordination of a Cosmic Ray Experiment Outreach Project During a Total Solar Eclipse Mark Adams 1 University of Illinois at Chicago Physics Department, 845 W. Taylor Street, Chicago, IL 60607, USA E-mail: adams@uic.edu Nathan Unterman, Clarissa Carr, Jacob Rosenberg, Anthony Valsamis Glenbrook North High School Tamar Dallal, Michelle Matten, Jacob Miller, Ezra Schur, Allen Sears Ida Crown Jewish Academy Abstract: The QuarkNet program has distributed hundreds of cosmic ray detectors for use in high schools and research facilities throughout the world over the last two decades. To test the hypothesis that the rate of cosmic rays may change during a solar eclipse, a collaboration of high school students and teachers came together to build cosmic ray telescopes that were reproduced by thirty groups across the USA. Groups from a wide geographic region collected data and measured rates of muons during the solar eclipse on August 21, 2017. The process of outreach and execution will be discussed. No variation in the muon flux during the eclipse was observed. 36th International Cosmic Ray Conference -ICRC2019- July 24th - August 1st, 2019 Madison, WI, U.S.A. 1 Speaker