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One of three drones used in recent tests by NASA’s Jet Propulsion Laboratory in Southern California flies over Mars Hill, a region of Death Valley National Park, in September 2025. The region’s rubbly, volcanic rocks have served as a Mars-like testing area and analog site for scientists since the 1970s, when NASA was preparing to land the twin Viking spacecraft on the Red Planet. The drone research — tests of navigation software for the Martian surface — was one of 25 projects funded by NASA’s Mars Exploration Program this past year to push the limits of future technologies. Sand dunes confus…
