Marfa, Texas, is a pretty weird place. The modest-sized city—its population of 2,400 equals roughly half its altitude—was named for a character in a Russian novel, served as the set of James Dean’s last movie, and has since the late 1800s been known for the mysterious Marfa ghost lights, the unexplained glowing spheres that appear randomly in the night air east of the town. But Marfa is also home to another astonishing and out-of-the-ordinary phenomenon.