Establishing the abundance and physical properties of regolith and boulders on asteroids is
crucial for understanding the formation and degradation mechanisms at work on their …

INTRODUCTION Active asteroids are small bodies in the Solar System that show ongoing
mass loss, such as the ejection of dust, which may be caused by large impacts, volatile …

Thermal inertia and surface roughness are proxies for the physical characteristics of
planetary surfaces. Global maps of these two properties distinguish the boulder population …

The small bodies of our solar system are the remnants of the early stages of planetary
formation. A considerable amount of information regarding the processes that occurred …

Abstract The Europa Thermal Emission Imaging System (E-THEMIS) on the Europa Clipper
spacecraft will investigate the temperature and physical properties of Europa using thermal …

Carbonaceous (C-type) asteroids are relics of the early Solar System that have preserved
primitive materials since their formation approximately 4.6 billion years ago. They are …

Asteroid (162173) Ryugu is the target object of Hayabusa2, an asteroid exploration and
sample return mission led by Japan Aerospace Exploration Agency (JAXA). Ground-based …

Context. The complex shape of comet 67P and its oblique rotation axis cause pronounced
seasonal effects. Irradiation and hence activity vary strongly. Aims. We investigate the …

Abstract Space missions and ground-based observations have shown that some asteroids
are loose collections of rubble rather than solid bodies. The physical behaviour of such …

We analyze the trajectories of 313 particles seen in the near‐Bennu environment between
December 2018 and September 2019. Of these, 65% follow suborbital trajectories, 20 …