Ghosts, UFOs, fairies — for more than 100 years, onlookers have tried to identify the twinkling lights that appear at night outside the tiny town of Marfa in West Texas. Appearing as bright, colorful orbs pulsating or darting through the dark and wide Texas skies, the Marfa Lights have captivated everyone from cowboys to actor James Dean, who saw them while filming the movie “Giant.” What the lights are and how they are created remains a mystery, but the town celebrates them every year at its annual Marfa Lights Festival.