In the Payload Hazardous Servicing Facility, workers carry one of the Stardust solar panels removed for testing. The spacecraft Stardust will use a unique medium called aerogel to capture comet particles flying off the nucleus of comet Wild 2 in January 2004, plus collect interstellar dust for later analysis. Stardust will be launched aboard a Boeing Delta 7426 rocket from Complex 17, Cape Canaveral Air Station, targeted for Feb. 6, 1999. The collected samples will return to Earth in a re-entry capsule to be jettisoned from Stardust as it swings by Earth in January 2006