Illustration of the IceCube Laboratory Embedded in the South Pole Ice (image) University of Copenhagen Share Print E-Mail Caption The sensors detecting neutrinos are attached to the strings lowered into the ice. The upgrade will take place in the Deep Core area. Illustration: IceCube/NSF Credit IceCube/NSF Usage Restrictions None Share Print E-Mail 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.