Ithor / Legends Ithor was the fourth planet located in Ottega system of the Mid Rim . One of the oldest members of the Galactic Republic , it was a planet full of lush life , and the planet ' s surface had not a touch of civilization on it . The Ithorians themselves , otherwise known as " Hammerheads , " built great floating cities that did not harm the surface , which they considered to be sacred . Entry upon the surface was forbidden , unless one stayed there permanently . Some Ithorians such as the Oracle were compelled to go down to the planet surface , however , as they " heard the call " of Mother Jungle , the Ithorian religion ' s personification of Ithor ' s world - spanning jungle . The surface of the planet of Ithor played host to numerous plants , including the bafforr tree , which possessed telepathic capabilities . The planet contained andurite stone , and every three Ithorian years was the center of the Time of Meeting . The planet had many moons in its night sky . History . Ithor joined the Galactic Republic prior to 8000 BBY . In 3963 BBY , when Republic fleet encountered a Mandalorian raiding force in an asteroid field near Ottega system , Dace Golliard predicted they would attack Ithor next , although it turned out to be a ruse set up by Zayne Carrick and Cassus Fett to capture Golliard . In 439 BBY , scientists attempted to bond the telepathic capabilities of the bafforr tree with another , more vicious tree on the planet surface . The result was a new parasitic life form named " Spore , " but its parasitic hostility forced the Ithorians to lock it away in an asteroid 300 BBY . It was long afterwards discovered by miners . In 19 BBY , Grand Master Yoda of the Jedi Order , was reported dead in an incident on Ithor . Sometime before the Battle of Yavin , Ithor came under siege by the Galactic Empire , which demanded access to Ithorian agricultural techniques and technology in an attempt to locate biotech for military applications . Lead by Captain Alima he threatened the Ithorians with the destruction of their sentient forests , the Cathor Hills . However the Empire was ousted from the planet through a deal formulated by Momaw Nadon , where he bargained with the Empire to reveal the secrets of the Ithorians ' technology and agricultural ceremonies , in return for the protection of their ' mother jungle ' . Sometime after the Battle of Yavin , the Galactic Empire planned to attack the planet . The Rebel Alliance heard of these plans prior to the attack and dispatched Han Solo to rescue a group of Ithorians wishing to evacuate . Just a few minutes before the attack , Han and his co - pilot Chewbacca were able to rescue the Ithorians . A small battle raged afterwards , with many TIE Fighters . Han and Chewbacca managed to dodge space slugs in a nearby asteroid field and place the Ithorians on Bimmisaari . Umwaw Moolis represented the planet in the New Republic Senate . Destruction . However , by 25 ABY , Ithor ' s tranquil existence came to an end . The Yuuzhan Vong War blazed a trail from the Outer Rim , and Ithor lay directly in their path . Retreating from Dantooine and Dubrillion , the New Republic made a stand at the planet , hoping to resist the invasion long enough to make use of the bafforr tree pollen , which had somehow reacted violently with the living armor of the Yuuzhan Vong . The battle entered into a state of stalemate , until Jedi Knight Corran Horn dueled Shedao Shai , the leader of the Yuuzhan Vong forces , with the planet Ithor at stake . Though Horn was victorious , Shai ' s subordinate , Deign Lian , was ordered by Warmaster Tsavong Lah to unleash a plague of toxins upon the planet , in order to eliminate any chance of a pollen - based bioweapon . The virulent biochemicals ( a biological gray goo ) rapidly turned Ithor ' s verdant forests and animal life into a black ooze which spread and destroyed everything it touched . In retaliation , the assembled Remnant and New Republic forces fired massive barrages of concussion Missile s and proton torpedoes at the Yuuzhan Vong command ship , " Legacy of Torment " , which broke into three sections . The rear end of the massive warship tumbled into the now hydrogen - oxygen rich atmosphere and ignited it , turning Ithor into a firestorm ridden inferno of a planet . Ithor ' s legacy . As of 35 ABY , when the Dark Nest Crisis began and ended , the Ithorians were attempting to relocate to Borao . This attempt almost failed due to the presence of the RePlanetHab organization , who claimed the rights for the world . Chief of State Cal Omas was able to block RePlanetHab ' s attempts at the " suggestion " of Leia Organa Solo . By the end of the Swarm War in 36 ABY , some scientists were residing on the planet , studying it in hopes of rehabilitation , but most Ithorians settled on Borao along with Felucia , Oetrago and the worlds of the Upell system . However , considering the Ithorians ' skills in ecology and their previous experience in re - terraforming worlds such as Telos IV , they hoped that Ithor could have been reinhabited one day . Abandoning the Ossus Project of Jedi Master Kol Skywalker , the Ithorians decided to rebuild their world using the same technology as during the Restoration of Telos IV . By 137 ABY much of the planet ' s surface remained rocky and dry , but genetically engineered dangerous plants and animals began to slowly transform the planet ' s soil and atmosphere into livable state . Visitors to the planet surface were still required to wear breath masks to avoid a large number of toxins in the atmosphere , but environment suit s were no longer necessary . Biosphere . The surface of the planet Ithor was formerly an immense jungle . Following the Ithorian belief in the Law of Life , most Ithorians never actually set foot on their own planet , instead they lived in floating cities above their world called herdships . Only three of their continents had been explored and harvested , the other two never having been touched by Ithorian hands , demonstrating their devout belief in the protection and sustainability of their environment . Such protectionism toward their environment gave rise to numerous native plants and animals . The bafforr tree was considered semi - sentient and possessed telepathic capabilities and acted as a sort of distributed intellect - the larger the forest was , the higher the collective intellect . Behind the scenes . The PC game " " mistakenly places Ithor in the Calaron sector of the Outer Rim .