The Nova-class Empire Ship is presumably the largest capital ship in the Yeerk Fleet. It is unknown if Pool ships are larger. The Nova-class Empire Ship consists of eight large spherical sections arragned around a central cylinder that has four engines on one end that blaze blue light. There are normaly several bug fighters docked on the outside of the vessel. Only the highest-ranking Yeerks may command Nova-Class Empire Ships. Visser One is in command of one in The Reunion.
|Earth/Human Technology||EGS tower | Oatmeal | Battle Morph|
|Andalite technology||Andalite Disc | Dome Ship | Escafil Device | Hirac delest | Mirrorwave call | Z-space transponder | Morphing | Mag-Hover Truck | Quantum Virus | Shredder | Gleet Bio-Filter|
|Yeerk Technology||Anti-morphing ray | Dracon beam | Gleet Bio-Filter | Kandrona | Kandrona Rays | Nova-class Empire Ship | Pool ship | Blade ship | Mag-Lev Train | Hunter-Killer Robot | Yeerk Pool | Bug fighter|
|Ketran Technology||Explorer | Time Matrix | Fire-And-Forget Explosive Homer | Uninet | Adge|
|Other||Dropshaft | Ixcila(Arn) | Pemalite crystal | Skrit Na Saucer | Hawjabran Colony Ship | Hawjabran Freighter|