Results from the solar-powered spacecraft provide a new measurement of the thickness of the ice shell encasing theJovian moonsocean. Data from NASAs Juno mission hasprovidednew insights into the thickness and subsurface structure of the icy shell encasing Jupiters moon Europa. Using the spacecrafts Microwave Radiometer (MWR), mission scientistsdeterminedthat the shell averages about 18 miles (29 []