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Asteroid samples leave Japan scientists 'speechless'

Written by  Tuesday, 15 December 2020 02:38
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Tokyo (AFP) Dec 15, 2020
Scientists in Japan said Tuesday they were left "speechless" when they saw how much asteroid dust was inside a capsule delivered by the Hayabusa-2 space probe in an unprecedented mission. The Japanese probe collected surface dust and pristine material last year from the asteroid Ryugu, around 300 million kilometres (200 million miles) away, during two daring phases of its six-year mission.

Scientists in Japan said Tuesday they were left "speechless" when they saw how much asteroid dust was inside a capsule delivered by the Hayabusa-2 space probe in an unprecedented mission.

The Japanese probe collected surface dust and pristine material last year from the asteroid Ryugu, around 300 million kilometres (200 million miles) away, during two daring phases of its six-year mission.

This month it dropped off a capsule containing the samples, which created a fireball as it entered the Earth's atmosphere, and landed in the Australian desert before being transported to Japan.

Scientists at the Japanese space agency JAXA on Tuesday removed the screws to the capsule's inner container, having already found a small amount of asteroid dust in the outer shell.

"When we actually opened it, I was speechless. It was more than we expected and there was so much that I was truly impressed," said JAXA scientist Hirotaka Sawada.

"It wasn't fine particles like powder, but there were plenty of samples that measured several millimetres across."

Scientists hope the material will shed light on the formation of the universe and perhaps offer clues about how life began on Earth.

The scientists have not yet revealed if the material inside is equal to, or perhaps even more, than the 0.1 grams they had said they hoped to discover.

Seiichiro Watanabe, a Hayabusa project scientist and professor at Nagoya University, said he was nonetheless thrilled.

"There are a lot (of samples) and it seems they contain plenty of organic matter," he said.

"So I hope we can find out many things about how organic substances have developed on the parent body of Ryugu."

Half of Hayabusa-2's samples will be shared between JAXA, US space agency NASA and other international organisations.

The rest will be kept for future study as advances are made in analytic technology.

But work is not over for the probe, which will now begin an extended mission targeting two new asteroids.


Related Links
Asteroid and Comet Mission News, Science and Technology

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IRON AND ICE
First presentation after Hayabusa2 return set for SPIE conference Dec 14
Bellingham WA (SPX) Dec 11, 2020
As part of the opening plenary session at the SPIE Astronomical Telescopes + Instrumentation Digital Forum, Hitoshi Kuninaka, of the Japan Aerospace Exploration Agency, will be discussing and responding to audience questions about the successful return of the Hayabusa2 capsule from its asteroid-sample mission, a second-time-in-history-success that marks exciting and innovating advances for the astronomical-instrumentation community. In addition, Kuninaka may have initial information regarding what poten ... read more


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