High-resolution infrared images of the Shoemaker-Levy 9 impact with Jupiter may be viewed here. These images come from the University of Hawaii's 2.2-meter telescope, and were obtained with a new 1024x1024 infrared camera. Images from July 20 and July 21, 1994 (UT) (July 19 and 20 HST) are available.
All images were taken through a filter centred at 2.3 microns. This filter transmits infrared light in the approximate wavelength range 2.2-2.4 microns, where methane absorption in Jupiter's atmosphere makes Jupiter appear to be relatively dark.
If these are impact creators then Jupiter is not a glassy planet, why did they bomb Jupiter so many times, at least 5-7 times, NASA have weaponised the satellites...