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Scientists have finally studied their first examples of returning from asteroids in space, and they confirm what you can expect – as they provide new insights. ScienceAlert reports researchers have released two papers revealing their initial analysis of the models at Ryugu, the space in which the Hayabusa2 study visited in February 2019. The team knew that Ryugu would be a common asteroid, with a high C-concentration, but this still makes it look good on the original Solar System components.
These examples show that Ryugu has a carbon form similar to that of the Sun’s photosphere (outer shell), similar to other meteorites. It is made up of the oldest materials in the Solar System, which come from dust formed along with the same Sun. It is also porous, like most asteroids. However, it is not a clear and concise example. Most C-type asteroids have a low albedo (solar radiation reflectivity) of 0.03 to 0.09 due to carbon, but Ryugu is 0.02. It is dark even with the dimensions of its celestial neighbors.
As such, the actual presence of these courses represents success. The first attempt to restore the model, from astroid Itokawa in 2010, only released a small amount of dust. There is more to come from Ryugu, but even the available ones can help scientists refine their understanding of the birth and development of the Sun.
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