The international IceCube Collaboration, which includes several researchers from MSU, was awarded the 2021 Bruno Rossi Prize by the High Energy Astrophysics Division of the American Astronomical Society, for the discovery of a high-energy neutrino flux of astrophysical origin. Experimental high energy physicists Claudio Kopper, and Nathan Whitehorn, were the two lead authors of the 2013 analysis that discovered the neutrino flux for which IceCube received the prize.