The mystery of the origin of dust on the ISS is revealed

The mystery of the origin of dust on the ISS is revealed
The mystery of the origin of dust on the ISS is revealed

Russian scientists decided to determine how dangerous the dust found on the International Space Station (ISS) is.

Employees of the Moscow Region Laboratory of Neutron Physics. IM Frank of the Joint Institute for Nuclear Research (JINR) analyzed the composition of the dust and, as a result, identified the main sources of the substance's origin.

It turned out that this dust can have several sources, including particles of cosmic bodies.

“Most of the meteorites are chondrites [containing chondrules - spherical or elliptical formations of predominantly silicate composition]. They account for up to 85% of the total number of meteorites, "Inga Zinkovskaya, head of the sector of neutron activation analysis and applied research at the JINR Laboratory of Neutron Physics, told the Izvestia newspaper.

She noted that they have a special composition and ratio of elements.

According to Zinkovskaya, experts have studied the quantitative ratio of elements on the contaminated tissue and compared them with what is characteristic of chondrites. As a result, it was concluded that magnesium, silicon, iron, uranium and thorium on the fabric are of cosmic origin.

Scientists also found that the second source of dust is the station's body itself, and the third is volcanic ash rising from the Earth. It contains the metals barium, zirconium, rhenium, strontium, rubidium and rare earth elements found on the ISS.

“Dust from various sources is in space and settles on the surface of spacecraft in the same way as on surfaces on Earth,” summed up Zinkovskaya.

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