Jayce and the Wheeled Warriors (1985)

S1E27 Space Thief

Two planets, one teeming with life, are headed for a catastrophic collision. In a bid to save them, Gillian concocts a potion designed to stimulate the growth of the Monster Minds on the barren planet, but only on one side. This asymmetrical weight distribution will lead to the planet fracturing, thus preventing the disastrous impact.