Mars dust may be less abrasive than lunar dust, spacesuit samples suggest

Tucked away among its sensors, cameras and navigation tools, NASA's Mars rover Perseverance is wearing small swatches of spacesuit material. A rover doesn't need a spacesuit, but the swatches—each less than a square inch (6.5 square centimeters) in size—serve an important purpose: They're helping scientists assess the potential damage caused by ubiquitous Martian dust.

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