NASA reveals hidden danger on Mars: microscopic dust sticks to astronauts' suits

The vast distances and extreme temperatures may not be the only threats to astronauts on Mars. NASA has revealed another challenge: extremely fine dust that can adhere to materials used in spacesuits for years.

These findings came after the Perseverance rover conducted measurements over 1,645 Martian days using small samples of spacesuit fabrics it carried to the surface of the Red Planet.

According to NASA, scientists used the PIXL instrument to analyze the accumulated dust and discovered particles as small as approximately 100 nanometers—about 700 times smaller than the width of a human hair.

The study showed that static electricity plays a key role in the adhesion of these particles to surfaces. While larger clumps gradually settle, fine grains remain suspended despite the rover’s movement and ongoing activities.

The results raise health concerns, as similar particles can penetrate the lungs when inhaled, although the actual risks of exposure to Martian dust still require assessment.

The study also found that some materials retain less dust than others, which could help scientists develop more protective spacesuits and habitats, as well as technologies to prevent dust from being transported into astronauts’ living quarters in the future.