Wicked Weather Satellite
From the Super Mario Wiki
In "Mario and the Red Baron Koopa", King Koopa and Lakitu use the Wicked Weather Satellite to hold Pasta Land at ransom. If Pasta Land didn't surrender to King Koopa's rule, the Wicked Weather Satellite would freeze the kingdom over with a never ending snow storm.
How the Wicked Weather Satellite works is never explained. It doesn't seem to have any storage compartments on it to hold any rainwater or snow, and it also has no visible means of propulsion, meaning how it can stay suspended in the air is unknown.