NASA’s Perseverance rover studies fine and ultrafine dust that settles on samples of spacesuit material carried aboard the mission, measuring how small particles behave over more than 1,645 Martian days. The research, published in the Proceedings of the National Academy of Sciences, finds that some particles are small enough to reach the lungs and enter the bloodstream.

The reporting frames the work as guidance for protecting astronauts on future Mars missions. Phys.org emphasizes how the measurements could influence spacesuit and habitat design, dust-removal procedures, and crew health standards. NASA’s own news release likewise focuses on the same measurements and publication timeline, highlighting their relevance to shielding crews from the health risks posed by ultrafine Martian dust.