Gyro Gearloose has built a mockup of the Solar System (complete with top-notch artifical gravity to make the planets follow realistic orbits) for the Junior Woodchucks' science club. Unfortunately, after seeing Gyro bring the mockup Sun to his lab, the Beagle Boys become persuaded that it is actually a bauble of solid gold and decide to steal it. When they break into the lab, the crooks' mass interferes with the artificial orbitting system, causing planets, moons and stars to go haywire and chase them out…
Behind the scenes
This story was only ever printed once (in English or otherwise), in the 1996 Uncle Scrooge #299.