Comets have three known reservoirs: the roughly spherical Oort Cloud (for long-period
comets), the flattened Kuiper Belt (for ecliptic comets), and, surprisingly, the asteroid belt (for …

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 …

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 …

The processes that led to the formation of the planetary bodies in the Solar system are still
not fully understood. Using the results obtained with the comprehensive suite of instruments …

ABSTRACT Our modern day Solar System has 4.6× 109 yr of evolution behind it with just a
few relics of its birth conditions remaining. Comets are thought to be some of the most …

Dust particle sizes constrained from dust continuum and polarization observations by radio
interferometry are inconsistent by at least an order of magnitude. Motivated by porous dust …

INTRODUCTION The close flyby of the Kuiper Belt object (486958) Arrokoth (formerly 2014
MU69) by NASA's New Horizons spacecraft revealed details of the body's structure, geology …

The factors sha** cometary nuclei are still largely unknown, but could be the result of
concurrent effects of evolutionary, and primordial processes,. The peculiar bilobed shape of …

INTRODUCTION On 1 January 2019, the New Horizons spacecraft passed 3538 km from
Kuiper Belt object (KBO)(486958) Arrokoth. Arrokoth is a contact binary consisting of two …

The flyby of Pluto and Charon by the New Horizons spacecraft provided high-resolution
images of cratered surfaces embedded in the Kuiper belt, an extensive region of bodies …