TRAPPIST-1 is a fantastic nearby (∼ 39.14 light years) planetary system made of at least
seven transiting terrestrial-size, terrestrial-mass planets all receiving a moderate amount of …

The habitable zone (HZ) is the circular region around a star (s) where standing bodies of
water could exist on the surface of a rocky planet. Space missions employ the HZ to select …

We have collected transit times for the TRAPPIST-1 system with the Spitzer Space
Telescope over four years. We add to these ground-based, HST, and K2 transit-time …

Context. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an
ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation and …

The TRAPPIST-1 planetary system provides an unprecedented opportunity to study
terrestrial exoplanet evolution with the James Webb Space Telescope (JWST) and ground …

The HR 8799 system uniquely harbors four young super-Jupiters whose orbits can provide
insights into the system's dynamical history and constrain the masses of the planets …

We combine analytical understanding of resonant dynamics in two-planet systems with
machine-learning techniques to train a model capable of robustly classifying stability in …

Multiple planet systems provide an ideal laboratory for probing exoplanet composition,
formation history and potential habitability. For the TRAPPIST-1 planets, the planetary radii …

The ultracool dwarf star TRAPPIST-1 hosts seven Earth-size transiting planets, some of
which could harbor liquid water on their surfaces. Ultraviolet observations are essential to …

Combining occurrence rates of rocky exoplanets about sun-like stars, with the number of
such stars that occupy possibly hospitable regions of the Milky Way, we estimate that at least …