Transmission spectroscopy,–of exoplanets has revealed signatures of water vapour,
aerosols and alkali metals in a few dozen exoplanet atmospheres,. However, these previous …

Photochemistry is a fundamental process of planetary atmospheres that regulates the
atmospheric composition and stability. However, no unambiguous photochemical products …

The Saturn-mass exoplanet WASP-39b has been the subject of extensive efforts to
determine its atmospheric properties using transmission spectroscopy,,–. However, these …

Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a
fundamental step towards constraining the dominant chemical processes at work and, if in …

The search for habitable environments and biomarkers in exoplanetary atmospheres is the
holy grail of exoplanet science. The detection of atmospheric signatures of habitable Earth …

Seven rocky planets orbit the nearby dwarf star TRAPPIST-1, providing a unique opportunity
to search for atmospheres on small planets outside the Solar System. Thanks to the recent …

The ExoMol database (www. exomol. com) provides molecular data for spectroscopic
studies of hot atmospheres. These data are widely used to model atmospheres of …

Close-in giant exoplanets with temperatures greater than 2,000 K ('ultra-hot Jupiters') have
been the subject of extensive efforts to determine their atmospheric properties using thermal …

The field of exoplanet atmospheric characterization has recently made considerable
advances with the advent of high-resolution spectroscopy from large ground-based …

WASP-107b is a warm (approximately 740 K) transiting planet with a Neptune-like mass of
roughly 30.5 M⊕ and Jupiter-like radius of about 0.94 RJ (refs.,), whose extended …