The
Death Star's prime weapon unleashed unthinkable levels of raw energy capable of tearing apart entire worlds. That energy began deep inside the gargantuan station, and was eventually channeled into an array of eight tributary laser cannons. The beams from these cannons culminated into a central blast directed from the eye-shaped concavity in the Death Star's upper hemisphere. Teams of highly skilled
Imperial gunners manned advanced control stations, managing the titanic weapon.
With this weapon, the Death Star reduced Alderaan to rubble. It never had a chance to fire again, as the Rebel Alliance was able to destroy the station at the Battle of Yavin. It wasn't long before the weapon was resurrected in an improved form aboard the second Death Star.
This second cannon could target capital ships and its power yields could be managed to support frequent firing. Many key Alliance warships were vaporized by the Death Star during the Battle of Endor.