Asteroid Belt

The asteroid belt is a field of rock and debris in the Solar System that floats in the orbital path between Mars and Jupiter.

Known asteroids include:
 * Ceres
 * Juno
 * Pallas

The Headmasters cartoon
While travelling back to Earth, Scorponok made a pit stop at Pallas. The pursuing Autobots made a similar stop at Ceres. The two forces battled on Pallas, but Sixshot arranged for a personal duel with Chromedome on Juno; the duel ceased when Daniel Witwicky got between the two of them and Scorponok caused Juno to explode after taking off for Earth.

Victory cartoon
Deathsaurus's Decepticons had set the Thunder Arrow on an asteroid and set up a factory. With devices planted on the asteroid, they pulled in spaceships to use their crew as slaves and the ships for smelting to produce the energy alloy. Ship disappearances had become so frequent that the region was called the "Devil's Space Triangle". Star Saber, realizing that it was a Decepticon plot, disguised himself as a human spaceship to be abducted. Once on the asteroid, Star Saber destroyed the devices and drove off the Decepticons.

Exosquad
The ExoFleet and the Pirate Clans are battling in the asteroid belt.