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 …

Various natural effects gradually alter the surfaces of asteroids exposed to the space
environment. These processes are collectively known as space weathering. The influence of …

Our understanding of solar system evolution is closely tied to interpretations of asteroid
composition, particularly the M-class asteroids. These asteroids were initially thought to be …

Investigating the effects of space-weathering on primitive bodies is paramount in assessing
their composition and understanding their history. For this purpose, we conducted 40 keV …

Spectroscopic measurements are a powerful tool to investigate the surface composition of
airless bodies and provide clues of their origin. The composition and origin of Phobos and …

We present results from a set of low and high flux 1 keV/amu H+ and He+ irradiation
experiments performed on slabs of the Murchison CM2 carbonaceous chondrite. The low …

Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith
Explorer (OSIRIS-REx) mission to carbonaceous asteroid (101955) Bennu performed …

It has been predicted that high equatorial temperatures on Mercury could promote thermal
annealing by Ostwald ripening, where nanophase metal particles (a product of space …

Context. Primitive asteroids consisting of mainly phyllosilicates and opaque minerals have
great variation at near-ultraviolet (NUV) wavelengths (0.35–0.5 μm). The absorption in NUV …

M-type asteroids are historically thought to be exposed metallic cores of differentiated
planets with a composition dominated by pure iron and nickel. However, recent spectral and …