Planet

By scientific definition, a planet is any object orbiting a sun with an empty path and sufficient gravity to not tear apart or deform. However, the definition of "Planet" used in Transformers context is a bit different. ANYTHING with gravity can be a planet, and oddly, they all seem to be about the same.

Known Planets
Over the course of the many continuities of Transformers, a lot of planets have been encountered, most of them sustaining life. Here are some of the more well-known planets prominently mentioned. It should be noted in some continuities, they are vastly different in atmosphere and gravitational pull, while in others, they're invariably JUST LIKE EARTH.


 * Earth - Most likely, you're on it.
 * Cybertron - The homeworld of the Transformers, it's roughly the size of Saturn (according to some sources) and yet humans can walk on it with no problems (in other sources). It may or may not also turn into a gigantic robot of unspeakable and awesome power.
 * Nebulos - Home to human-like aliens who can combine with larger robots through special armor and cybernetic implants.
 * Master - Kinda the same, but the aliens are robots or something. Crazy, I know, but only in the Japanese Headmasters anime.
 * Junkion - AKA the intergalactic junk yard. Looks more like a single continent than a whole planet (and probably wouldn't be considered a planet either, at least in real life).
 * The three colony worlds of Cybertron - Way in the past, these planets were to be made into homes for Cybertronians, but the space bridge project failed and most of them forgot about it, except for the Gigantions who went emo and started building for self punishment. Although most appear much larger than earth, they still have Earth-like gravity (that, or the human kids are incredibly strong) and an earth-like atmosphere (or, the kids the Autobots picked up DON'T BREATHE).

Transforming planets?
Within the | Omniverse,] there are an infinite upon infinite number of possibilities. Which leads to the inclusion of planet-sized Transformers. The two most commonly known are Unicron and Primus. Both were given life at the beginning of time by the One, the sentient core of the universe, or in one case, a puddle of glowing food-goo. Whatever the origins, they are beyond legendary, with their stories heard throughout the universe, and not only by Transformers. The planet Junkion was SUPPOSED to transform, but they probably forgot when they came back from commercial break.