Botanical testing station: the forgotten laboratories of Arrakis

The botanical testing stations were scientific structures on the desert world of Arrakis. In Frank Herbert's Dune, the Planetologist Pardot Kynes runs one as his Imperial post, and an abandoned station is the hiding place where Duncan Idaho makes his last stand. The Dune Encyclopedia adds that the stations were where the Fremen learned the skills and took the tools for their hidden windtraps and water basins, and the expanded books push their history back to the Old Empire. (Dune; Dune (appendix); The Dune Encyclopedia; Expanded books: Dune: The Machine Crusade)

Outposts of the Old Empire#

The expanded books give the stations a deep past. In Dune: The Machine Crusade, set thousands of years before Dune, the oldest of them are already relics, assembled by Old Imperial scientists who once studied the Arrakeen environment and then left. (Expanded books: Dune: The Machine Crusade)

One of these ancient stations is found by the young Zensunni outcast Selim Wormrider. After the desert ordeal in which he first rides one of the great worms, Selim comes upon a station hidden nearby, camouflaged in the rocks. It gives him shelter, and its ancient rations have stayed preserved through the ages. He also finds hundreds of literjons of water inside, collected over the centuries by automated moisture extractors that went on harvesting the air long after the station's builders had gone. (Expanded books: Dune: The Machine Crusade)

Cradles of the sietch#

Frank Herbert's appendix to Dune tells how Pardot Kynes won the Fremen over and set them to work on his plan to remake Arrakis. The Dune Encyclopedia fills in the station's part in it. Under the noses of his Harkonnen overseers, Kynes smuggled desert Fremen into his testing stations, where they studied, ran tests and carried tools and equipment back to their sietches to set up hidden windtraps and water basins. (Dune (appendix); The Dune Encyclopedia)

The stations also lent their names to the Fremen's secret gardens. According to The Dune Encyclopedia, the eight palmaries planted in the south were named after eight of the Imperial Testing Stations, so that they could be talked about without alerting the Harkonnens. (The Dune Encyclopedia)

The station of the Kynes#

Pardot Kynes, the Imperial Planetologist sent to study Arrakis, made a testing station his official post. After the Fremen took up his vision of a transformed Arrakis and hailed him as umma, a prophet, Kynes went back to that post and used it as cover for their work, bringing in Fremen as its personnel and diverting tools such as cutterays to dig underground catchbasins and hidden windtraps. He organised small-unit experiments with regular interchange of data, building up a mass of tiny observations of the planet's climate and life. (Dune (appendix); The Dune Encyclopedia)

The station grounds also served his research directly. In The Dune Encyclopedia's account, Kynes worried that the sandtrout, the water stealers of the deep desert, could dry out any area his Fremen chose to plant. He had several captured and loosed in one of the testing station gardens. The plant roots stopped them sealing off water, and those that did not leave the garden died, which put his fears to rest. (The Dune Encyclopedia)

Pardot's work passed to his son. Liet-Kynes, raised among the Fremen, succeeded him as Planetologist and carried on the plan his father had started. (Dune; Dune (appendix))

The last refuge of Duncan Idaho#

An abandoned testing station is the setting for one of the bitterest episodes of the fall of House Atreides. When the Padishah Emperor's Sardaukar join the attack on Arrakeen in Harkonnen uniform, the Atreides Swordmaster Duncan Idaho survives the massacre of the household. He finds Paul Atreides and the Lady Jessica in the desert after their escape from their Harkonnen captors and brings them to the old station, where the Planetologist Liet-Kynes is waiting. (Dune)

The refuge does not hold for long. Sardaukar find the station and storm it, and Duncan Idaho is cut down holding the way, though not before he has killed nineteen of the Emperor's soldiers. Paul and Jessica escape in an ornithopter and flee toward the deep desert, parting ways with Kynes. The fight at the old station opens the road to the Desert War, the long campaign by which Paul and the Fremen would break the Harkonnens and the Imperium itself. (Dune)