The search for life on other planets is one of the grand scientific goals of our time. The
Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020) 1 sets the top priority in …

Core segregation and atmosphere formation are two of the major processes that redistribute
the volatile elements—hydrogen (H), carbon (C), nitrogen (N), and sulfur (S)—in and around …

There is a wealth of evidence to suggest that planetary systems can survive beyond the
main sequence. Most commonly, white dwarfs are found to be accreting material from tidally …

Many potential mechanisms for delivering planetary debris to within a few Roche radii of
white dwarfs rely on gravitational scattering events that feature perturbers which are giant …

The mantra “know thy star, know thy planet” has proven to be very important for many
aspects of exoplanet science. Here I review how stellar abundances inform our …

White dwarf studies carry significant implications across multiple fields of astrophysics,
including exoplanets, supernova explosions, and cosmological investigations. Thus …

Long-term magma ocean phases on rocky exoplanets orbiting closer to their star than the
runaway greenhouse threshold—the inner edge of the classical habitable zone—may offer …

Whilst the formation of Solar system planets is constrained by meteoritic evidence, the
geophysical history of low-mass exoplanets is much less clear. The bulk composition and …

In the last few years astronomical surveys have expanded the reach of planetary science
into the realm of small and dense extrasolar worlds. These share a number of characteristics …

White dwarf atmospheres are frequently polluted by material from their own planetary
systems. Absorption features from Ca, Mg, Fe, and other elements can provide unique …