Exoplanetary science continues to excite and surprise with its rich diversity. We discuss here
some key aspects potentially influencing the range of exoplanetary terrestrial-type …

Aerobic lifeforms, including humans, thrive because of abundant atmospheric O2, but for
much of Earth history O2 levels were low. Even after evidence for oxygenic photosynthesis …

The disequilibrium combination of abundant methane and carbon dioxide has been
proposed as a promising exoplanet biosignature that is readily detectable with upcoming …

The evolution of Earth's atmospheric O 2 levels on long timescales is modulated in part by
the composition of magmatic gases, specifically their oxidation state and speciation. Here …

Earth's carbon cycle maintains a stable climate and biosphere on geological timescales.
Feedbacks regulate the size of the surface carbon reservoir, and on million‐year timescales …

The rise of Earth's atmospheric O2 levels at~ 2.4 Ga was driven by a shift between
increasing sources and declining sinks of oxygen. Here, we compile recent evidence that …

The study of the atmospheric composition and evolution of rocky planet atmospheres is key
to understanding both the conditions required to develop a habitable planet, and to analyse …

Although molecular oxygen (O₂) is a major component of Earth's atmosphere today and a
key signature of life on this planet, we do not understand why and how Earth has evolved …