A new piece of evidence supporting the photoevaporation-driven evolution model for low-
mass, close-in exoplanets was recently presented by the California–Kepler Survey. The …

The radii and orbital periods of 4,000+ confirmed/candidate exoplanets have been precisely
measured by the Kepler mission. The radii show a bimodal distribution, with two peaks …

Planets are expected to conclude their growth through a series of giant impacts: energetic,
global events that significantly alter planetary composition and evolution. Computer models …

Transiting planet surveys like Kepler have provided a wealth of information on the
distribution of planetary radii, particularly for the new populations of super-Earth-and sub …

The mantle perspective provided by radiogenic isotope geochemistry has evolved over the
last 40 years. Although the idea of an upper mantle depleted in incompatible elements by …

A common origin for the Moon and Earth is required by their identical isotopic composition.
However, simulations of the current giant impact hypothesis for Moon formation find that …

In the solar system, the planets' compositions vary with orbital distance, with rocky planets in
close orbits and lower-density gas giants in wider orbits. The detection of close-in giant …

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 …

Context. A first characterization of extrasolar planets by the observational determination of
the radius has recently been achieved for a large number of planets. For some planets, a …

Neptune-sized planets exhibit a wide range of compositions and densities, depending on
factors related to their formation and evolution history, such as the distance from their host …