Comet dust contains organic matter

An international team of scientists analyzed the dust particles collected from comets. It is found that comet dust contains different compounds. After analyzing the sample of comet dust collected from the Stardust vessel's feedback chamber scientists have made new discoveries.

The Stardust probe flew into space from February 1999 and January 2004, the ship flew through the cloud of thick ice and dust particles about 5 km around Wild2 Comet, and collected flying particles. from Comet surface at a distance of 240km from the Comet core.

These particulate matter are no more than 1mm in size, even with particles of only 1 / 1000mm in size. The particulate matter after collecting was taken back to Earth by the Stardust probe with a closed chamber. On January 15, 2006, the feedback compartment containing Sao Com's dust was separated from the Stardust spacecraft and landed in the Utah desert in the United States.

These physical samples are distributed to well-known laboratories for research.

Stardust probe probe of Comet Wild 2 (Photo: berkeley.edu)

The international team of about 170 scientists after analyzing the collected dust broom has discovered that these materials have been formed in different cosmic locations and at different periods, even even their formation conditions are different . The diversity of matter in Comet dust has surprised scientists.

Scientist Scott Sandford of the Stardust project team of the Ames Research Center of the US Department of Aeronautics, said that the substances in the Star dust are as diverse as the animals in the zoo. Among them, they discovered a new type of organic matter.

In the Comet Dust Wild2 has a large amount of complex carbides, which can produce a chemical reaction when combined with other organic compounds.

In addition, there are many unstable chemicals in comet dust samples. They are vastly different from the chemicals detected from meteorites found on the earth.

They have also never found the kind of annular aromatic hydrocarbon in this dust, which is a very common type of organic matter in meteorites, but scientists have discovered a large amount of cells - xy and nitrogen in the dust sample.

As a result of this analysis, it is predictable, the organic molecules that we see are very likely to form at an early stage when the Solar System exists, and also the first phase of the formation of Comet as well as planets (including the earth) under the effect of ultraviolet rays and cosmic rays.

Stardust is the first probe to bring samples of Sao Broom dust back to earth, these are the most primitive samples from Comet, so they have very specific research value for Comet.

Astronomers believe that Comet is the most primitive material left when forming the Solar System, they are considered " archaeological samples " of the evolution and formation of the Solar System.