Japan’s space agency officials said Tuesday they have found more than the expected amount of soil and gases inside a small capsule returning from the country’s Haibusa 2 spacecraft this month, a mission they hail as a target for planetary research.
The Japan Aerospace Exploration Agency said its staff initially spotted some black particles sitting under the capsule’s sample catcher when they pulled the container out on Monday. By Tuesday, scientists had found more samples of land and gas in a container they had collected from two touchdowns of Hibusa on the planet last year.
“We have confirmed the good sand that is apparently collected from the planet Rayugu, along with the gases,” JXA Hayabusa 2 project manager Yuichi Susuda said in a video message during a news online news conference. “The extraterrestrial specimens we have long imagined are now in our hands.”
Tasuda called the successful return of asteroid soil and gas samples “a major scientific goal.”
The leaf-shaped capsule, 40 centimeters (15 inches) in diameter, was placed by Hayabusa 2 on 6 December at the end of its six-year round trip to Ryug, from space in the sparsely populated Australian Australian desert. 300 million kilometers (190 million miles) from Earth.
The capsule arrived in Japan last Tuesday for research that scientists hope will provide an understanding of the origin of the solar system and life on Earth.
Hirotaka Savada, a JXA scientist, was the first to look inside the sample-catcher of the capsule. Sawada said he was “almost speechless” with pleasure when he saw that the samples inside had some like the size of dust, but some also had the size of gravel.
The clay samples in the photo shown in Tuesday’s presentation appeared to be filled with grains like the gran throat of the magnificent coffee grounds.
Savada said the tightly sealed capsule successfully brought back asteroid gases that are clearly different from air on Earth – the first sample-return of gases from outer space. Ryuji Okazaki, a scientist at Kyushu University, said the gases could be related to the minerals in the asteroid’s soil and he hoped to identify gas samples and determine their age.
Scientists hope that samples of asteroid’s crust could provide information billions of years ago that were not affected by space radiation and other environmental factors. JXA scientists say they are particularly interested in the organic matter in the samples to find out how they are distributed in the solar system and if they are related to Earth life.
Se-Ichiro Watanabe, an earth and environmental scientist at the University of Nagoya who works with Jago, said having more sample material to work on than expected is great news as it will expand the field of study.
Samples were collected from two touchdowns created by Hybusa 2 on Rayugu last year. The landing was more difficult than expected due to the extremely rocky surface of the asteroid.
Samples were collected from the surface of the Rugu and in the second underground during the first landing. Each was stored separately. JX said it will examine the second compartment, which will be used for a second touchdown next week, and will continue the initial examination of the study material after that.
Following the study in Japan, some samples will be shared with NASA and other international space agencies for additional research starting in 2022.
Haibusa 2, at the time, is now on an 11-year expedition to another planet to try to study the defense potential against a meteorite that could fly to Earth.
A Japanese investigation found black “sand-like” asteroid dust
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Testimonial: Japan’s space agency finds enough soil, gas from planet (2020, December 15) https://phys.org/news/2020-12-japan-space-agency-ample-soil.html
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