Our galaxy is jam-packed with planets, with thousands already discovered and millions more expected to eventually come into view. Within this ever-growing bounty, surprises have abounded, revealing that our solar […]
This paper presents a version of the HEXTOR energy balance model that has been configured for the study of habitable terrestrial planets orbiting low-mass stars. The model is validated for […]
Many planetary parameters impact the climate state of Earth-like exoplanets and could vary significantly from those on Earth.
Sulfur is a redox active element that may have helped mediate an electron flow that kickstarted life and which presently is an essential element for all life on Earth. Despite […]
The abundances of atmospheric carbon species–carbon dioxide (CO2), carbon monoxide (CO), and methane (CH4)–exert fundamental controls on the climate, redox state, and prebiotic environment of terrestrial planets.
The rise of oxygen in the Earth’s atmosphere during the Great Oxidation Event (GOE) occurred about 2.3 billion years ago. There is considerably greater uncertainty for the origin of oxygenic […]
As the architecture for the Habitable Worlds Observatory (HWO) is being developed, it is crucial to optimize the observing strategies for a survey to detect and characterize Earth-like planets around […]
Hydrogen, helium, silicates, and iron are key building blocks of rocky and gas-rich planets, yet their chemical interactions remain poorly constrained.
In our galaxy, tens of billions of wet, rocky Earth-like planets orbit in the habitable zones of their host stars.
We present a comprehensive multivariate statistical analysis of 517 exoplanets from the NASA Exoplanet Archive to identify potentially habitable worlds and quantify detection bias in current surveys.
