NASA to launch telescope on super-pressure balloon in search for cosmic rays
By Greg Borzo, UChicago News, April 5, 2017
''We're searching for the most energetic cosmic particles that we’ve ever observed,'' said Angela V. Olinto, the Homer J. Livingston Distinguished Service Professor at the University of Chicago and principal investigator of the project, known as the Extreme Universe Space Observatory-Super Pressure Balloon. ''The origin of these particles is a great mystery that we'd like to solve. Do they come from massive black holes at the center of galaxies? Tiny, fast-spinning stars? Or somewhere else?''