- "This device wasn't just some supersized thermal detonator. It was a planet buster."
- ―Quip Fargil
Due to their extremely destructive nature these superweapons were banned sometime during the Imperial era. The push to ban this type of weapon was led by the planet Alderaan, with Senator Bail Organa being a strong proponent of the measure. However, unknown to Senator Organa, the Rebellion did manage to obtain one baradium fission device. The Rebellion planned to use the device to destroy the Imperial Shipyards orbiting the planet Bilbringi. This mission would end in failure when the pilot charged to deliver the weapon ditched the device because he was unwilling to sacrifice the Millennium Falcon.