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 …

Determining the origin of volatiles on terrestrial planets and quantifying atmospheric loss
during planet formation is crucial for understanding the history and evolution of planetary …

Images from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of
67P/Churyumov-Gerasimenko consists of two lobes connected by a short neck. The nucleus …

" The study of planet formation has a long history. The idea that the Solar System formed
from a rotating disk of gas and dust-the Nebula Hypothesis-dates back to the writings of …

Context. Current models of the size-and radial evolution of dust in protoplanetary disks
generally oversimplify either the radial evolution of the disk (by focussing at one single …

Collisions are the core agent of planet formation. In this work, we derive an analytic
description of the dynamical outcome for any collision between gravity-dominated bodies …

How big were the first planetesimals? We attempt to answer this question by conducting
coagulation simulations in which the planetesimals grow by mutual collisions and form …

The orbital distribution of trans-Neptunian objects provides strong evidence for the radial
migration of Neptune,. The outer planets' orbits are thought to have become unstable during …

The main asteroid belt, which inhabits a relatively narrow annulus∼ 2.1–3.3 au from the
Sun, contains a surprising diversity of objects ranging from primitive ice–rock mixtures to …

ABSTRACT A large fraction of∼ 100 km class low-inclination objects in the classical Kuiper
Belt (KB) are binaries with comparable masses and a wide separation of components. A …