For the past 400 years, astronomers have sought to observe and interpret the Universe by
building more powerful telescopes. These incredible instruments extend the capabilities of …

The ice giants Uranus and Neptune are the least understood class of planets in our solar
system but the most frequently observed type of exoplanets. Presumed to have a small rocky …

Methane has been proposed as an exoplanet biosignature. Imminent observations with the
James Webb Space Telescope may enable methane detections on potentially habitable …

We have developed an online radiative-transfer suite (https://psg. gsfc. nasa. gov) applicable
to a broad range of planetary objects (eg, planets, moons, comets, asteroids, TNOs, KBOs …

We present an update of the open-source photochemical kinetics code VULCAN to include
C–H–N–O–S networks and photochemistry. The additional new features are advection …

We present a one-dimensional coupled ion-neutral photochemical kinetics and diffusion
model to study the atmospheric composition of Titan in light of new theoretical kinetics …

Abstract Upcoming James Webb Space Telescope observations will allow us to study
exoplanet and brown dwarf atmospheres in great detail. The physical interpretation of these …

We have developed a one-dimensional photochemical and thermochemical kinetics and
diffusion model to study the effects of disequilibrium chemistry on the atmospheric …

Titan's lower atmosphere has long been known to harbor organic aerosols (tholins)
presumed to have been formed from simple molecules, such as methane and nitrogen (CH4 …

The nature of the thermal structure of hot Jupiter atmospheres is one of the key questions
raised by the characterization of transiting exoplanets over the past decade. There have …