I was returning a HUGE 500-part mothership from a Grand Tour of Jool. "This is going to be a close call!" "Very close!" BOOOOOOOOOOM! My 500-part mothership smashes at interplanetary velocity into my 500-part, 13-kerballed space station, destroying it. The Rings of Kerbin have been discovered! About 760 parts (240 were lost in the explosion) now float around Kerbin. I don't delete debris .