Rocky planets are common around other stars, but their atmospheric properties remain
largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming …

The prospects for the habitability of M-dwarf planets have long been debated, due to key
differences between the unique stellar and planetary environments around these low-mass …

Observations of transiting gas giant exoplanets have revealed a pervasive depletion of
methane,,–, which has only recently been identified atmospherically,. The depletion is …

The abundances of main carbon-and oxygen-bearing gases in the atmospheres of giant
exoplanets provide insights into atmospheric chemistry and planet formation processes …

Helium is the second-most abundant element in the Universe after hydrogen and is one of
the main constituents of gas-giant planets in our Solar System. Early theoretical models …

We perform a study of stellar flares for the 24,809 stars observed with 2 minute cadence
during the first two months of the TESS mission. Flares may erode exoplanets' atmospheres …

Stellar heating causes atmospheres of close-in exoplanets to expand and escape. These
extended atmospheres are difficult to observe because their main spectral signature …

The search for life in the Universe is a fundamental problem of astrobiology and modern
science. The current progress in the detection of terrestrial-type exoplanets has opened a …

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 …

Observational evidence for esca** exoplanet atmospheres has been obtained for a few
exoplanets to date. It comes from strong transit signals detected in the ultraviolet, most …