The search for exoplanets has encompassed a broad range of stellar environments, from single stars in the solar neighborhood to multiple stars and various open clusters. The stellar environment has […]
habitability
The Inner Solar System's Habitability Through Time
Earth, Mars, and Venus, irradiated by an evolving Sun, have had fascinating but diverging histories of habitability. Although only Earth’s surface is considered to be habitable today, all three planets […]
Is Extraterrestrial Life Suppressed On Subsurface Ocean Worlds Due To The Paucity Of Bioessential Elements?
The availability of bioessential elements for “life as we know it”, such as phosphorus (P) or possibly molybdenum (Mo), is expected to restrict the biological productivity of extraterrestrial biospheres. Here, […]
Habitability Classification of Exoplanets: A Machine Learning Insight
We explore the efficacy of machine learning (ML) in characterizing exoplanets into different classes. The source of the data used in this work is University of Puerto Rico’s Planetary Habitability […]
Could A Multiverse Be Hospitable To Life?
A Multiverse – where our Universe is only one of many – might not be as inhospitable to life as previously thought, according to new research.
Water Partitioning in Planetary Embryos and Protoplanets with Magma Oceans
The water content of magma oceans is widely accepted as a key factor that determines whether a terrestrial planet is habitable. Water ocean mass is determined as a result not […]
Earth's Stable Temperature Past Suggests Other Planets Could Also Sustain Life
Theories about the early days of our planet’s history vary wildly. Some studies have painted the picture of a snowball Earth, when much of its surface was frozen. Other theories […]
Gaian Bottlenecks and Planetary Habitability Maintained by Evolving Model Biospheres: The ExoGaia Model
The search for habitable exoplanets inspires the question – how do habitable planets form? Planet habitability models traditionally focus on abiotic processes and neglect a biotic response to changing conditions […]
The Continued Importance of Habitability Studies
This is a white paper in response to the National Academy of Sciences “Exoplanet Science Strategy” call. We summarize recent advances in theoretical habitability studies and argue that such studies […]
The Habitability Of Our Evolving Galaxy
The notion of a Galactic Habitable Zone (GHZ), or regions of the Milky Way galaxy that preferentially maintain the conditions to sustain complex life, has recently gained attention due to […]
