Spacesuit swatches on Perseverance hint Mars dust is gentler than Moon's

NASA's Perseverance rover is carrying small swatches of spacesuit material, each smaller than a square inch, tucked among its sensors and cameras. The samples help scientists judge how much damage the ever-present Martian dust could do to astronaut gear. Findings from the swatches suggest that dust on Mars may be less abrasive than the dust found on the Moon.