Hayabusa Asteroid Samples Reveal Evidence of heat 4.6 billion yrs ago

Particles brought back by Japan’s Hayabusa unmanned space probe, which returned to Earth from the asteroid Itokawa last June, show signs that the material constituting the asteroid may have been formed in high temperatures at the time the solar system was created 4.6 billion years ago, the Japan Aerospace Exploration Agency, or JAXA, said in a preliminary analysis report Thursday.

The agency also said organic substances, which could help explain the origins of life, have not been found in the samples.

JAXA has been examining the particles in cooperation with scientists across the country, with the hope of shedding light on the origin of the solar system, as Itokawa is said to have maintained its form from the time the solar system was created.

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