Tenth Planet

Aside from giving birth to an evil death phoenix, the Tenth Planet was pretty boring.

TheTenth Planet( đệ thập hoặc tinhDaijū Wakusei) is an undiscovered planet "in the far reaches of theMilky Way".It is the birthplace ofViolengiguar.

Fiction

Zonestory pages

The Zodiac reformatted the Tenth Planet into San Francisco, then?

For unknown reasons, the spirits of many slain Decepticon warriors fused together into the entity known as Violengiguar on the Tenth Planet. He proceeded to cover the world in dark clouds, blotting out all starlight and turning it into a barren, desolate world. From then on, he would use it as his base of operations.ZonePart 10ZonePart 12

After seizing theZodiacfrom theAutobots,Violengiguar returned to his birthplace. ThePowered Masterspursued him and managed to defeat his three insectoid forms, allowing them to reclaim the Zodiac,Zone story page #11but Violengiguar was not yet defeated, and revealed his true form as a flaming, phoenix-like mass ofDecepticonspirits. The Powered Masters placed their hands upon the Zodiac and channeled its energy into themselves, then united into their combined form ofBig Poweredto destroy Violengiguar with the Zodiac-powered "Rainbow Powered Attack". With Violengiguar eliminated, the rainbow of Zodiac energy transformed the Tenth Planet into a paradise for human and Transformer alike.Zone story page #12

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Ask Vector Prime

Vector Primestated that the Tenth Planet was in fact the body ofUnicronfromPrimax 886.0 Gamma.After being blasted out of that dimension byRodimus Primewith theMatrix of Leadership,Unicron's body ended up as the tenth planet in the Sol system inTyran 609.08 Kappa.The binary end-state nature of that universe put too much strain on Unicron's systems, and his comatose form resurrected many of the Transformers who he had consumed. They dubbed their worldPlanet X,and journeyed toPrimax 290.0 Zetato begin a campaign of conquest. However, the local Autobots thwarted the denizens of Planet X and used the power of the Zodiac to eliminate Unicron's essence, splitting the planet in two. Half remained behind as a paradise planet while the other was shunted toAurex 105.08 Alpha,where it finally met its end in war withGigalonia.Ask Vector Prime