Wait, Did The Jedi Actually Know Palpatine Was Building A Death Star Before Revenge Of The Sith?!?

Emperor Palpatinekept the Death Star a secret for decades, but some Star Warsstories suggest that the Jedi knew he was building it. The Death Star's earliest chronological appearance is in Star Wars: Episode II - Attack of the Clones, where Count Dooku acquires the Death Star plans and delivers them to Palpatine. It next appears onscreen at the end of Star Wars: Episode III - Revenge of the Sith as Palpatine and Darth Vader observe its construction.