This review presents our understanding of cometary dust at the end of 2017. For decades,
insight about the dust ejected by nuclei of comets had stemmed from remote observations …

Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2
spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide …

Interplanetary dust particles and meteoroids mostly originate from comets and asteroids.
Understanding their distribution in the Solar system, their dynamical behavior and their …

INTRODUCTION Comets and asteroids preserve information on the earliest stages of Solar
System formation and on the composition of its building blocks. The nature of their solid …

Relating planet formation to atmospheric composition has been a long-standing goal of the
planetary science community. So far, most modeling studies have focused on predicting the …

The annual flux of extraterrestrial material on Earth is largely dominated by sub-millimetre
particles. The mass distribution and absolute value of this cosmic dust flux at the Earth's …

Meteorites originating from primitive C-type asteroids are composed of materials from the
Sun's protoplanetary disk, including up to a few per cent organic carbon. In contrast, some …

The disk midplane temperature is potentially affected by the dust traps/rings. The dust
depletion beyond the water snowline will cast a shadow. In this study, we adopt a detailed …

Micrometeorites originate from the interplanetary dust complex and continuously fall to the
Earth's surface in large amounts. About 10 to 20% of micrometeorites are not melted upon …

The infrared spectral characteristics of organic‐rich acid residues prepared from Ryugu
samples returned by the JAXA Hayabusa2 mission generally match those from unheated …