Asteroid Ryugu tagged posts

Asteroid Ryugu samples suggest presence of salty water in outer solar system

Want some salt with that?
Colorized microscopic image of sodium carbonate deposit on Ryugu sample. Credit: KyotoU/Toru Matsumoto

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their proximity also offers ample opportunities to learn more about the universe. Ryugu, a 900-meter diameter asteroid in the Apollo belt, has recently proven useful in our search for signs of life’s precursors elsewhere in our solar system.

A team of researchers at Kyoto University have found evidence of salt minerals in samples recovered from Ryugu during the initial phase of Japan’s Hayabusa2 mission...

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Records of Cometary Dust Hitting the Asteroid Ryugu

A carbonaceous material found in the melt splash. The carbonaceous material shows spongy texture and contains small iron sulfide inclusions. This is similar to the primitive organic matters found in cometary dust. ©Megumi Matsumoto et al.

The Hayabusa2 mission that collected samples from the asteroid Ryugu has provided a treasure trove of insights into our solar system. After analyzing samples further, a team of researchers have unearthed evidence that cometary organic matter was transported from space to the near-Earth region.

Ryugu is a near-Earth asteroid that gained significant attention when the Japanese Hayabusa2 mission collected samples and returned them to Earth...

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Analysis of Particles of the Asteroid Ryugu Delivers Surprising Results

The asteroid Ryugu from a distance of 20 kilometres, photographed by the Hayabusa 2 space probe. Photo credit: JAXA, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST

In December 2020, a small landing capsule brought rock particles from the asteroid Ryugu to Earth — material from the beginnings of our solar system. The Japanese space probe Hayabusa 2 had collected the samples. Geoscientist Professor Frank Brenker and his team from Goethe University Frankfurt were among the first researchers wordwide allowed literally to “shed light” on these scientifically precious samples. In the process, they discovered areas with a massive accumulation of rare earths and unexpected structures...

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Grains of Dust from Asteroid Ryugu Older than our Solar System

Grains of dust from Asteroid Ryugu older than our solar system
(a) Backscattered electron (BSE) image of Ryugu thin section A0058-2. Every black area consists of ∼20 NanoSIMS maps measured. (b) An area in section C0002 with a less altered lithology than the surrounding Ryugu matrix (“clast 1”; BSE image). This area contains Mg-rich olivine, low-Ca pyroxenes, and spinel grains with sizes up to ∼15 μm (Kawasaki et al. 2022). Two of three O-anomalous grains identified in Ryugu, including one likely presolar silicate (g)–(h), were found in this region. (c)–(e) Secondary electron (SE) image of a Ryugu particle pressed into gold foil in which two presolar SiC grains were detected. The C-anomalous regions, indicated by the white arrows, are clearly associated with 28Si hotspots. (f) 17O-rich presolar oxide found in the Ryugu A0058-2 matrix...
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