The moniker rubble pile is typically applied to all Solar System bodies> 200 m and<∼ 10 km
in diameter; in this size range, there is an abundance of evidence that nearly every object is …

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 …

Hera is a planetary defense mission under development in the Space Safety and Security
Program of the European Space Agency for launch in 2024 October. It will rendezvous in …

The bearing capacity-the ability of a surface to support applied loads-is an important
parameter for understanding and predicting the response of a surface. Previous work has …

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 Moon is generally believed to have formed from debris ejected by a large off-centre
collision with the early Earth,. The impact orientation and size are constrained by the angular …

Accumulation of dust and ice particles into planetesimals is an important step in the planet
formation process. Planetesimals are the seeds of both terrestrial planets and the solid cores …

This paper is a compilation by table, graph, and equation of impact cratering rates from
Jupiter to Pluto. We use several independent constraints on the number of ecliptic comets …

We present numerical orbital integrations of thousands of massless particles as they evolve
from Neptune-encountering orbits in the Kuiper belt for up to 1 Gyr or until they either impact …

Non-destructive, non-contaminating, and relatively simple procedures can be used to
measure the bulk density, grain density, and porosity of meteorites. Most stony meteorites …