The Hayabusa2 mission journeys to C-type near-Earth asteroid (162173) Ryugu (1999 JU
3) to observe and explore the 900 m-sized object, as well as return samples collected from …

This comprehensive study delves into the significance of asteroid research and proposes a
systematic classification consisting of seven distinct categories. Initially, a concise definition …

C-type asteroids are considered to be primitive small Solar System bodies enriched in water
and organics, providing clues to the origin and evolution of the Solar System and the …

The near-Earth asteroid 162173 Ryugu, the target of the Hayabusa2 sample-return mission,
is thought to be a primitive carbonaceous object. We report reflectance spectra of Ryugu's …

The carbonaceous asteroid Ryugu has been explored by the Hayabusa2 spacecraft to
elucidate the actual nature of hydrous asteroids. Laboratory analyses revealed that the …

Analyses of meteorites and theoretical models indicate that some carbonaceous near-Earth
asteroids may have been thermally altered due to radiative heating during close approaches …

Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible
and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical …

The asteroid (162173) Ryugu and other rubble-pile asteroids are likely re-accumulated
fragments of much larger parent bodies that were disrupted by impacts. However, the …

Planetesimals—the initial stage of the planetary formation process—are considered to be
initially very porous aggregates of dusts,, and subsequent thermal and compaction …

The thermal infrared imager TIR onboard Hayabusa2 has been developed to investigate
thermo-physical properties of C-type, near-Earth asteroid 162173 Ryugu. TIR is one of the …