Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life

Experimental study of carbonate formation in oceanic peridotite

(2017) Niya G. Grozeva et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

(2017) Michaël Gillon et al.   NATURE

The geologic history of seawater pH

(2017) I. Halevy et al.   SCIENCE

Atmospheric characterization of Proxima b by coupling the SPHERE high-contrast imager to the ESPRESSO spectrograph

(2017) C. Lovis et al.   ASTRONOMY & ASTROPHYSICS

The energy expansions of evolution

(2017) Olivia P. Judson   Nature Ecology & Evolution

On Detecting Biospheres from Chemical Thermodynamic Disequilibrium in Planetary Atmospheres

(2016) Joshua Krissansen-Totton et al.   ASTROBIOLOGY

Earth's air pressure 2.7 billion years ago constrained to less than half of modern levels

(2016) Sanjoy M. Som et al.   Nature Geoscience

Abiotic methane formation during experimental serpentinization of olivine

(2016) Thomas M. McCollom   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Earth’s oxygen cycle and the evolution of animal life

(2016) Christopher T. Reinhard et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Limited role for methane in the mid-Proterozoic greenhouse

(2016) Stephanie L. Olson et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Combining high-dispersion spectroscopy with high contrast imaging: Probing rocky planets around our nearest neighbors

(2015) I. Snellen et al.   ASTRONOMY & ASTROPHYSICS

Global Continental Arc Flare-ups and Their Relation to Long-Term Greenhouse Conditions

(2015) C.-T. A. Lee et al.   Elements

Estimates of atmospheric CO2 in the Neoarchean–Paleoproterozoic from paleosols

(2015) Yoshiki Kanzaki et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Causes and consequences of mid-Proterozoic anoxia

(2015) Louis A. Derry   GEOPHYSICAL RESEARCH LETTERS

Isotopic evidence for biological nitrogen fixation by molybdenum-nitrogenase from 3.2 Gyr

(2015) Eva E. Stüeken et al.   NATURE

Combining high-dispersion spectroscopy with high contrast imaging: Probing rocky planets around our nearest neighbors

(2015) I. Snellen et al.   ASTRONOMY & ASTROPHYSICS

The search for signs of life on exoplanets at the interface of chemistry and planetary science

(2015) S. Seager et al.   Science Advances

FEASIBILITY STUDIES FOR THE DETECTION OF O2IN AN EARTH-LIKE EXOPLANET

(2014) Florian Rodler et al.   ASTROPHYSICAL JOURNAL

Pyrite multiple-sulfur isotope evidence for rapid expansion and contraction of the early Paleoproterozoic seawater sulfate reservoir

(2014) Clint Scott et al.   EARTH AND PLANETARY SCIENCE LETTERS

The rise of oxygen in Earth’s early ocean and atmosphere

(2014) Timothy W. Lyons et al.   NATURE

Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event

(2014) Noah J. Planavsky et al.   Nature Geoscience

Sulfate was a trace constituent of Archean seawater

(2014) S. A. Crowe et al.   SCIENCE

Low Mid-Proterozoic atmospheric oxygen levels and the delayed rise of animals

(2014) N. J. Planavsky et al.   SCIENCE

Abiotic Production of Methane in Terrestrial Planets

(2013) Andrés Guzmán-Marmolejo et al.   ASTROBIOLOGY

COMPUTING INTRINSIC LYα FLUXES OF F5 V TO M5 V STARS

(2013) Jeffrey L. Linsky et al.   ASTROPHYSICAL JOURNAL

FINDING EXTRATERRESTRIAL LIFE USING GROUND-BASED HIGH-DISPERSION SPECTROSCOPY

(2013) I. A. G. Snellen et al.   ASTROPHYSICAL JOURNAL

Quantifying the areal extent and dissolved oxygen concentrations of Archean oxygen oases

(2013) Stephanie L. Olson et al.   CHEMICAL GEOLOGY

BIOLOGICAL EFFECTS ON THE SOURCE OF GEONEUTRINOS

(2013) NORMAN H. SLEEP et al.   INTERNATIONAL JOURNAL OF MODERN PHYSICS A

Microbiome of the upper troposphere: Species composition and prevalence, effects of tropical storms, and atmospheric implications

(2013) N. DeLeon-Rodriguez et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Proterozoic ocean redox and biogeochemical stasis

(2013) C. T. Reinhard et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Laboratory Simulations of Abiotic Hydrocarbon Formation in Earth's Deep Subsurface

(2013) T. M. McCollom   Reviews in Mineralogy & Geochemistry

ABIOTIC METHANE ON EARTH

(2013) Giuseppe Etiope et al.   REVIEWS OF GEOPHYSICS

Nitrogen Isotopic Composition and Density of the Archean Atmosphere

(2013) Bernard Marty et al.   SCIENCE

Air density 2.7 billion years ago limited to less than twice modern levels by fossil raindrop imprints

(2012) Sanjoy M. Som et al.   NATURE

Differentiating biotic from abiotic methane genesis in hydrothermally active planetary surfaces

(2012) C. Oze et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Greenhouse warming by nitrous oxide and methane in the Proterozoic Eon

(2011) A. L. ROBERSON et al.   Geobiology

Formation of H2 and CH4 by weathering of olivine at temperatures between 30 and 70°C

(2011) Anna Neubeck et al.   GEOCHEMICAL TRANSACTIONS

Multiple origins of methane at the Lost City Hydrothermal Field

(2010) Alexander S. Bradley et al.   EARTH AND PLANETARY SCIENCE LETTERS

Carbonate control of H2and CH4production in serpentinization systems at elevated P-Ts

(2010) L. Camille Jones et al.   GEOPHYSICAL RESEARCH LETTERS

Sensitivity of biomarkers to changes in chemical emissions in the Earth’s Proterozoic atmosphere

(2010) J.L. Grenfell et al.   ICARUS

Is there methane on Mars?

(2010) Kevin Zahnle et al.   ICARUS

Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica

(2010) Vladimir A. Samarkin et al.   Nature Geoscience

Fractal Organic Hazes Provided an Ultraviolet Shield for Early Earth

(2010) E. T. Wolf et al.   SCIENCE

Darwin—A Mission to Detect and Search for Life on Extrasolar Planets

(2009) C.S. Cockell et al.   ASTROBIOLOGY

Ammonium-bearing clinopyroxene: A potential nitrogen reservoir in the Earth's mantle

(2009) Anke Watenphul et al.   CHEMICAL GEOLOGY

Plate tectonics, flood basalts and the evolution of Earth’s oceans

(2008) Jun Korenaga   TERRA NOVA