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2 clusters · 13 sources · 3 days · First seen · Last updated

NASA Perseverance Martian dust discovery

Overview

NASA’s Perseverance rover has identified ultrafine dust particles on Mars, with some measuring as small as 100 nanometers. These particles are approximately 500 to 700 times thinner than a human hair.

Research published in the Proceedings of the National Academy of Sciences utilized the Planetary Instrument for X-ray Lithochemistry (PIXL) to examine dust adhering to materials on the rover, such as Teflon and Vectran—fabrics used in spacesuit construction. The analysis of data spanning 1,645 Martian days revealed two categories of dust: fine particles under 2.5 micrometers and ultrafine particles around 100 nanometers.

Scientists have noted that while particle size does not inherently dictate toxicity, these ultrafine particles pose significant risks to future astronauts because they have a higher potential to penetrate the respiratory system and enter the bloodstream. The dust contains substances such as silica, iron, and perchlorates, which can be harmful. These findings are intended to assist engineers in developing improved spacesuits, habitats, and cleaning protocols for future crewed missions.

Entities

Jezero crater · NASA · Mars · Perseverance rover · Perseverance

Timeline

  1. [TECHNOLOGY] 4 sources
    NASA Perseverance rover discovers ultra-fine Mars dust particles

    NASA's Perseverance rover has identified ultra-fine Martian dust particles as small as 100 nanometers, posing potential respiratory risks to future astronauts.

  2. [TECHNOLOGY] 9 sources
    NASA Perseverance detects ultrafine Martian dust particles

    NASA's Perseverance rover has discovered ultrafine Martian dust particles as small as 100 nanometers, posing potential respiratory and bloodstream risks for future human missions to Mars.

Sources

bonedo.de · brasilemfolhas.com.br · ciencias.uy · exame.com · forbes.com.br · hellofresh.it · insajder.net · knowridge.com · lat.sputnikportal.rs · nasa.gov · okdiario.com · politika.rs · sputnikportal.rs