Impact of fragment C of Comet Shoemaker-Levy 9 observed by an infrared telescope 
at the South Pole called the South Pole Infrared Explorer (SPIREX). Images are 
shown before the impact, and after impact, when the impact site has rotated 
into view.  The post impact image shows a region of bright infrared 
emission at the impact site (bright spot to the lower left). 
These observations were performed by University of Chicago astronomers 
Mark Hereld, Hien Nguyen (at the South Pole), Bernard J. Rauscher, and 
Scott A. Severson.