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 …

This chapter reviews the estimates of the dust-to-gas and refractory-to-ice mass ratios
derived from Rosetta measurements in the lost materials and the nucleus of 67P/Churyumov …

Abstract The Rosetta spacecraft reached Comet 67P/Churyumov-Gerasimenko (hereafter
67P/CG) in August 2014 at an heliocentric distance of 3.6 au and was then put in orbit …

Cometary nuclei consist mostly of dust and water ice. Previous observations have found
nuclei to be low-density and highly porous bodies,,, but have only moderately constrained …

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 …

The Philae lander provides a unique opportunity to investigate the internal structure of a
comet nucleus, providing information about its formation and evolution in the early solar …

Thermal and mechanical material properties determine comet evolution and even solar
system formation because comets are considered remnant volatile-rich planetesimals. Using …

The COSIMA mass spectrometer on board the ROSETTA orbiter has collected dust in the
near coma of comet 67P/Churyumov-Gerasimenko since August 11, 2014. The collected …

Asteroids and comets are the remnants of the swarm of planetesimals from which the
planets ultimately formed, and they retain records of processes that operated prior to and …

The international Rosetta mission was launched in 2004 and consists of the orbiter
spacecraft Rosetta and the lander Philae. The aim of the mission is to map the comet …