Pillbug robot to shed thousands of tiny wind-powered drones for Martian lava-tube mapping

Scientists are proposing a biomimicry-inspired mission concept in which a pillbug‑like “roly‑poly” robot would crawl into Martian lava tubes and release thousands of micro‑drones (the “dandelion drones”). The drones would be powered by piezoelectric energy and carried into the caves by a parachute, then flown by Mars’ winds to map the tunnel network and collect environmental data. Because sunlight doesn’t reach the caves, the drones would not rely on solar power and would be painted white to travel farther. The plan highlights wind in caves as both a potential aid and a challenge, and includes a high‑powered fan to keep drones aloft if winds are weak. NASA and other groups have explored lava tubes on Mars and in analog sites, and the concept underscores broader interest in using drone swarms to scout difficult terrain (including future targets like Titan’s caves).