Ryugu's asteroid was born, splintered from a larger body in the outer solar system four billion years ago, discovered by scientists

Ryugu's asteroid was born, splintered from a larger body in the outer solar system four billion year

The analysis of the samples of Ryugu's asteroid revealed its age and region of origin in outer space, and studies show that although it is now classified as an Earth object, its journey to the inner solar system began billions of years ago and many millions of miles away from Earth.

Ryugu-like asteroids are known to consist of material left behind by the formation of the solar system 4.5 billion years ago, which means that their research allows us to assess the chemical composition of the early solar system and understand how its backyards were formed. The Rüga, as part of the Hayabusa-2 mission, was visited by the Japan Aerospace Exploration Agency.

The Argonian National Laboratory of the U.S. Department of Energy used X-ray equipment to use a mess Bauer spectroscopy to help find the slightest difference in the study of each particle. Studies have shown that the Ryugu formed in the outer solar system — its particles are different from those formed in celestial bodies near the Sun. In addition, the fragments are porous, which suggests that they previously contained frozen water and ice. Carbon dioxide and water may have existed in a solid form three to four times as far away from the Sun as the Earth is from it. This indicates that the body from which the Ryugu splintered was at least at that distance, possibly even outside Jupiter's orbit.

Unlike celestial bodies, naturally falling to the Earth and exposed to an oxygen-rich atmosphere, Ryugu particles were transported to the planet in vacuum containers, so they remained intact and were not oxidized with oxygen.

A study of the samples showed that the chemical composition was identical to that of some meteorites on Earth — the carbonic CI-Hondrites — and that there were only nine such samples in the hands of scientists. The use of spectroscopy revealed that the samples also contained a large amount of pyrotin, iron sulfide, which was missing in a dozen other samples of the studied meteorites.

Ryugu is believed to have been formed when a parent object clashed with another celestial body, and, like ice traces, pyrotin can be estimated to determine which area was approximately an asteroid at the time of the impact. Studies show that the main body was formed about two million years after the formation of the solar system. Although the parent body originally consisted of a variety of materials, including frozen water and carbon dioxide, the ice melted over the next three million years, leaving a hydrated core and a relatively dry surface.

About a billion years later, the parent body came across another body that separated the fragments from it, which eventually merged into what is now known as the Ryugu asteroid, which migrated into the inner solar system.