Neutrino Detector's Exterior (IMAGE) Princeton University Caption This view shows the exterior of the neutrino detector's 59-foot steel sphere. The scientists expect that geoneutrinos will aid them in better identifying what constitutes matter deep within the Earth. Credit LNGS-INFN Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.