Many outer solar system bodies are thought to harbor liquid water oceans beneath their ice
shells. This article first reviews how such oceans are detected. We then discuss how they …

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 …

Cassini measurements of Mimas' physical libration can be explained by either a non-
hydrostatic core or a global, liquid water ocean beneath a 24–31 km thick ice shell. An …

Outer solar system impact bombardment is largely unconstrained. Although recent data from
the Jupiter, Saturn, and Pluto systems have produced new constraints, analysis is …

The orbits of Saturn's inner mid-sized moons (Mimas, Enceladus, Tethys, Dione and Rhea)
have been notably difficult to reconcile with their geology. Here we present numerical …

Mimas, the smallest and innermost of Saturn's mid-sized moons, has a heavily cratered
surface devoid of the intricate fracture systems of its neighbor, Enceladus. However, Cassini …

Over the past three decades, we have witnessed one of the great revolutions in our
understanding of the cosmos—the dawn of the Exoplanet Era. Where once we knew of just …

Mimas' small size, lack of geologic activity, and high eccentricity suggest a frozen, inactive
history. However, Cassini libration measurements are best explained by a present‐day …

Saturn's mid-sized icy moons have complex relationships with Saturn's interior, the rings,
and with each other, which can be expressed in their shapes, interiors, and geology …

We present results from a suite of 169 hydrocode simulations of collisions between
planetary bodies with radii from 100 to 1000 km. The simulation data are used to derive a …