Experts announced the results of the analysis of the Ryugu gas sample, showing that the asteroid could come from a distant area of the solar system..
Three international expert groups have published research on Gas samples brought back by the Japanese Hayabusa 2 spacecraft from Ryugua near-Earth asteroid approximately 900 m wide, in 2020, Physical reported on October 24. These are the first samples of gas from an asteroid brought back to Earth.
The Hayabusa 2 probe captured the asteroid Ryugu in 2018.
The Hayabusa 2 spacecraft captured the asteroid Ryugu in 2018. (Photo: ISAS/JAXA)
The first group to study the volatile parts and evolution of the asteroid’s surface recently published the results in the journal Science. The second group focuses on the remains of nuclear fusion while the third group provides an overview of the gases brought back by Hayabusa 2. Both groups have published research in the journal Scientists progress.
First group discovered, Ryugu still has them isotopes and rare gases from the early solar system, as well as a mixture of nitrogen described as similar to Ivuna-type carbonaceous chondrites. They also discovered that one noble gas is produced by the solar wind and another is formed by the irradiation of cosmic rays. In addition, they also discovered a close relationship between CI chondrite and Ryugu magnetite.
Second group I discovered some specimens of Ryugu there Fe isotopic anomalies are similar to those of Ivuna-type CI chondrites. They also discovered iron isotopes that formed where there were no carbonaceous asteroids. This suggests that Ryugu could come from a more distant region of solar system space compared to what scientists once thought. The research team believes that this asteroid could originate from areas further than the orbits of Saturn or Jupiter. They note that the development and movement of these giant planets can make planetesimals unstable. Some planetesimals have ejected material into the asteroid belt, possibly including Ryugu.
Third group identify all gases brought back to Earth and measure the quantity of each gas. They found that some of the helium in the sample came from the solar wind and some had leaked from Earth’s atmosphere when the Hayabusa 2 spacecraft brought the sample back.
Asteroids are extremely valuable tools for helping astronomers understand the early solar system. Many scientists believe that the building blocks of life on Earth came from meteorites from elsewhere. Therefore, studying the composition of asteroids can help people better understand how life arose on Earth, and even search for places where life is likely to exist.
Article source: VnExpress
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Recently, experts announced the results of analysis of gas samples from Ryugu, showing that the asteroid could come from distant locations in the solar system.