Caption: A pool holding four anti-neutrino detectors begins filling with ultra-pure water in September, 2012 at the Daya Bay Neutrino experiment. The experiment, just recognized by Science magazine as a breakthrough of the year, is helping to explain why the universe contains virtually no anti-matter. University of Wisconsin-Madison physicist Karsten Heeger and Physical Sciences Laboratory engineer Jeff Cherwinka both played major roles at the experiment.
Credit: Roy Kaltschmidt, Lawrence Berkeley National Laboratory
Larger JPEG