Multiple choice How does Luke find out Leia is his sister? He goes back in time A Vulcan mind meld Darth Vader tells him He just figures it out over time Reveal answer Fill a bubble to check yourself C Correct answer Explanation In Return of the Jedi, Luke discovers that Leia is his sister after Obi-Wan Kenobi's spirit confirms it to him, following the revelation from Darth Vader.