Slip on your favorite "Star Wars" costume for a kid-friendly tribute to the world of George Lucas at Jedi Nights, held on the second Friday of each month through March. Each event features presentations and special activities, including light saber building, "Star Wars" character photo ops and a costume parade. Discovery Science Center, 2500 N. Main St., Santa Ana. 6 p.m. each 2nd Fri. through March. $15 for event pass. (714) 542-2823. http://www.discoverycube.org.