In the coming years and decades, advanced space-and ground-based observatories will
allow an unprecedented opportunity to probe the atmospheres and surfaces of potentially …

A class of isotope effects that alters isotope ratios on a mass-independent basis provides a
tool for studying a wide range of processes in atmospheres of Earth and other planets as …

Geological evidence shows that ancient Mars had large volumes of liquid water. Models of
past hydrogen escape to space, calibrated with observations of the current escape rate …

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 …

THE superconducting state of a metal is characterized by a complex order parameter with an
amplitude and a phase. In the BCS-Eliashberg mean-field theory1, which is a very good …

Living systems produce more than 90% of Earth's atmospheric methane; the balance is of
geochemical origin. On Mars, methane could be a signature of either origin. Using high …

We report a detection of methane in the martian atmosphere by the Planetary Fourier
Spectrometer onboard the Mars Express spacecraft. The global average methane mixing …

Using the Fourier Transform Spectrometer at the Canada–France–Hawaii Telescope, we
observed a spectrum of Mars at the P-branch of the strongest CH4 band at 3.3 μm with …

We present a comprehensive photochemistry model for exploration of the chemical
composition of terrestrial exoplanet atmospheres. The photochemistry model is designed …

Atmospheric loss has controlled the history of Martian habitability, removing most of the
planet's initial water through atomic hydrogen and oxygen escape from the upper …