The atmosphere of the Archean eon—one-third of Earth's history—is important for
understanding the evolution of our planet and Earth-like exoplanets. New geological proxies …

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

Stellar evolution models predict that the solar luminosity was lower in the past, typically 20-
25% lower during the Archean (3.8-2.5 Ga). Despite the fainter Sun, there is strong evidence …

The composition of an atmosphere has integrated the geological history of the entire
planetary body. However, the long-term evolutions of the atmospheres of the terrestrial …

The balance between carbon outgassing and carbon burial controls Earth's climate on
geological timescales. Carbon removal in carbonates consumes both atmospheric carbon …

Thermodynamic characterization of the relative stabilities of chemical compounds is a pillar
of conceptual models in various fields of geosciences. Analogous models applied to …

Advancing underground hydrogen storage (UHS) is essential for a sustainable, emission-
free future, with its success highly contingent on the unique properties of each subsurface …

Stable isotope compositions of biologically cycled elements encode information about the
interaction between life and environment. On Earth, geochemical biomarkers have been …

Observations of the interactions between hydrothermal fluids, rocks, and planetary
atmospheres demonstrate that hydrothermal systems strongly contribute to planetary …

Subsurface hydrogen storage is necessary to shift towards sustainable and zero-emission
energy technologies, but geochemical data on the suitability of different reservoirs for …