Galvan B is the moon of Galvan Prime.
In the past, Galvan B was much like Earth's Moon. There were miles of dead rock, no night or day, and no atmosphere.
Galvan scientists lead by Azmuth worked on terraforming Galvan B to make it habitable for a future colonization attempt. However, the project didn't go as planned, instead bringing forth an entire new species called the Galvanic Mechamorphs. As they came to life the Galvan allowed them to keep their world and live in peace as neighbors. With the help of the Galvan, they built an entire civilization in mere days.
In Showdown: Part 2, Galvan B was quickly repaired by the Galvanic Mechamorphs after being revived by the helix.