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Water and organic material found in a particle from asteroid Itokawa’s sample JAXA returned to Earth- Technology News

Analysis of a particle from the near-Earth object 25143 Itokawa asteroid has shown that the object had both extraterrestrial water and organic material. The particle called Amazon, named after the South American continent, was analysed by a team of researchers, reported Sci-News. The findings of the researchers published on 4 March 2021 in the peer-reviewed journal Nature shows that Itokawa has been evolving for billions of years. The team of researchers used Raman analysis and energy dispersive X-ray (EDX) spectroscopy to study the main components of the minerals in the Itokawa particle.

 Water and organic material found in a particle from asteroid Itokawas sample JAXA returned to Earth

The asteroid Itokawa. Image credit: Wikimedia Commons

Researchers state that understanding the earliest chemical reactions involved in the formation of water can help them to study the evolution of simple components into macromolecules. Dr Queenie Chan from the Royal Holloway’s Department of Earth Sciences is the lead author of this study.

The asteroid was discovered by the LINEAR program in 1998. It was carried to Earth by the Japan Aerospace Exploration Agency’s (JAXA) Hayabusa space probe as the first asteroid to be a part of the sample return mission.

Speaking about the significance of studying the asteroid Itokawa, Chan said that unlike meteorite samples, the possibility of terrestrial exposure is less in such samples.

In their research, they detected both heated and unheated organic matter within ten microns of distance. Researchers say that the presence of unheated organic material on the asteroid indicates that the primitive organics arrived on the asteroid after its temperature decreased. Their findings suggest that the asteroid Itokawa had previously gone through heating, dehydration and shattering.

With the help of the asteroid particle, researchers have been able to determine that the temperature of the asteroid had been 600 degree Celsius once, according to Chan.

Reportedly, this study indicates that the asteroid has the raw ingredients of life. Chan said that the evolutionary pathway of the asteroid seems similar to prebiotic Earth and “mixing of materials is a common process in the solar system.”


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Angelina Burt

A late bloomer but an early learner, Angelina likes to be honestly biased. Though fascinated by the far-flung corners of the galaxy, She doesn’t fancy the idea of humans moving to Mars. Angelina is a Contributing Author for NME.

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