UCICR instrument (IMAGE) University of Chicago Caption The UCICR instrument under construction at the University of Chicago. This instrument will measure the clouds around the balloon as it flies, so that scientists can accurately track the paths of passing cosmic particles. Credit Photo by Nancy Wong/University of Chicago Usage Restrictions Proper Attribution License Original 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.