The terrifying truth behind what happened to the Jedi’s lightsabers after Order 66.
After the Clones executed their Jedi Generals as part of the Jedi purge, any lightsabers found were collected from their cold, dead bodies and were transported to Coruscant, where the kyber crystal were to be used as part of Director Krennic’s Project Celestial power. Palpatine told the Galaxy that this project was to provide sustainable power to planets ravaged by the clone wars, but was instead used to power the death star super laser.
However A few of the top ranking Jedi, including Yoda also had their lightsabers incinerated by Mas Ammeda in a public display of force on coruscant.