Mature super-Earths and sub-Neptunes are predicted to be≃ Jovian radius when younger
than 10 Myr. Thus, we expect to find 5–15 R⊕ planets around young stars even if their older …

Convergent disk migration has long been suspected to be responsible for forming planetary
systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time …

Astronomers have found more than a dozen planets transiting stars that are 10–40 million
years old, but younger transiting planets have remained elusive. The lack of such …

We present an empirical model of age-dependent photospheric lithium depletion, calibrated
using a large homogeneously analysed sample of 6200 stars in 52 open clusters, with ages …

We report the discovery of two planetary systems around comoving stars: TOI-2076 (TIC
27491137) and TOI-1807 (TIC 180695581). TOI-2076 is a nearby (41.9 pc) multiplanetary …

The public, all-sky surveys Gaia and TESS provide the ability to identify new young
associations and determine their ages. These associations enable study of planetary …

Abstract Model-independent masses of substellar companions are critical tools to validate
models of planet and brown dwarf cooling, test their input physics, and determine the …

Young terrestrial worlds are critical test beds to constrain prevailing theories of planetary
formation and evolution. We present the discovery of HD 63433 d—a nearby (22 pc), Earth …

We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-
Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49 …

Recent analyses of the Gaia data have identified diffuse stellar populations surrounding
nearby open clusters. It is important to verify that these" halos,"" tails," and" strings" are of …