Observational data from the Galileo Orbiter's remote-sensing instruments, including solid-state imaging (SSI), the Near-Infrared Mapping Spectrometer (NIMS), and the ultraviolet spectrometer (UVS), are analyzed and interpreted in terms of the history of the Tyre and Pwyll impact sites and the nature of Europa's crustal zonal structure. Material characterized by asymmetric 1.4 and 2.0/xm bands a...