Experience points

Experience points are rewarded for completing various actions. Each experience point grants 60 score. The only way to gain substantial amounts of experience is by capturing roids. The formula for experience when capturing roids is approximately:

10 * (target value / attacker value) 

Per asteroid. The maximum per roid is 20 experience points translating to 1200 score. Since experience points cannot be lost, they represent a valuable resource.

Also known as 'XP'.