Goo

Goo #8739B (also known simply as Goo) is a planetoid comprised almost entirely of a sticky gum-like substance. It's used as a Garbage Disposal of sorts, and has apparant connections to the Junkions.

The Autobots Rodimus, Ultra Magnus, Springer and Arcee, as well as Spike Witwicky and a Quintesson crashed on Goo, after fleeing the destruction of Quintessa.

On Goo, Springer was caught and dismantled by an alien garbage truck, and the Autobots were attacked by a large force of Decepticons.

Afterward, in a fit of rage, Galvatron destroyed the entire planetoid.