In Frank Herbert's Dune, the Fremen survive the harsh desert world of Arrakis with full-body "stillsuits" that recycle sweat and urine into drinkable water. Now, researchers from Cornell University have created a prototype stillsuit for astronauts that turns urine into potable water during spacewalks. Herbert's detailed description of the stillsuit's design is brought to life in this new innovation which uses a high-efficiency filter and heat-exchange system to reclaim water through osmotic action and body movements. The concept of the stillsuit has been interpreted differently in adaptations such as David Lynch's film and Denis Villeneuve's recent Dune adaptations. While not the first attempt at creating a practical stillsuit, the Cornell team's version focuses on recycling sweat and moisture, with a design that condenses humidity on a suit's surface and collects it for drinking. Although not as efficient as Herbert's vision, this new stillsuit brings science fiction closer to reality.