Over the past 42 years, filmgoers have seen exotic worlds come to life in a succession of Star Wars movies — a series that is now coming to a climax with “Star Wars: Episode IX, The Rise of Skywalker.” But are those exoplanets really all that exotic anymore?
Sure, we’ve seen two suns in the sky over the sands of Tatooine, Luke Skywalker’s home planet. We’ve been to an ice planet (Hoth) and a lava planet (Mustafar). We’ve even spent time on a habitable exomoon that’s in orbit around a gas giant (Endor).
Back in 1977, most of us might have thought those types of worlds to be science-fiction fantastical. Today, they’re seen as totally plausible categories in the study of thousands of planets beyond our solar system. And Rory Barnes, a University of Washington astronomer who focuses on astrobiology and the habitability of exoplanets, suspects Star Wars creator George Lucas knew this could happen.