What are the mysterious x-ray emissions coming from galaxy clusters? Could researchers have found signals coming from dark matter?
Mark Egdall is a former aerospace program manager with an Bachelor's degree in physics from Northeastern University. Mark teaches physics at Lifelong Learning Institutes at several universities in South Florida and gives talks on the wonders of the universe. He is also the author of Einstein Relatively Simple: Our Universe Revealed in Everyday Language. For more information, see http://iramarkegdall.com/.