Special (Ganymede)
When you perform a build action, you may build two new spaceships instead of one. However, if you discard one or more Zap cards to extend a build action, you only build one extra spaceship for each Zap card you discard, not two.
When you perform a population action, each of your spaceships may collect one population unit from the area it is in or from any neighboring area.
This allows your spaceships to remain in ocean areas (where their defense is better) and still collect population.