"During their centuries of stewardship on Giedi Prime, the Harkonnens had made a habit of wringing the land for all it was worth. It was their right—no, their duty—to exploit this world for whatever it could give, and then move the villages to new land and new pickings." Brian Herbert.

Giedi Prime orbits the star Ophiuchi B and is the homeworld of House Harkonnen.

Carpeted with factories, refineries, and power plants, it is a polluted industrial wasteland, enveloped in choking smog and roving clouds of dust.