SPIREX Image of Fragment H Impact. These near-infrared (2.36 micron) images were taken by the South Pole Infrared Explorer telescope (SPIREX) beginning at 2:21 pm (Chicago), 18 July 1994, at five-minute intervals. Jupiter's moons Thoebe (far left) and Ganymede (top left) are visible. The impact site of Fragment G has rotated back in view and is visible as a bright spot near the planet's southern pole. SPIREX built and operated by scientists at the University of Chicago, is funed by the National Science Foundation. The SPIREX team includes Mark Hereld, Hien Nguyen (at the South Pole), Bernard Rauscher and Scott Severson.