Temperate exoplanets between the sizes of Earth and Neptune, known as “sub-Neptunes”, have emerged as intriguing targets for astrobiology. It is unknown whether these planets resemble Earth-like terrestrial worlds with […]
habitability
Astrobiology Mission Update: Juice Confirms That Earth Is Habitable
During its flyby of Earth on 20 August, ESA’s Jupiter Icy Moons Explorer (Juice) found ingredients for life in Earth’s atmosphere.
RedDots: Limits on Habitable and Undetected Planets Orbiting Nearby Stars GJ 832, GJ 674, and Ross 128
Aims. Using HARPS spectroscopic data obtained by the RedDots campaign, as well as archival data from HARPS and CARMENES, supplemented with ASH2 and T90 photometry, we aim to search for […]
Impact of Vegetation Albedo on the Habitability of Earth-like Exoplanets
Vegetation can modify the planetary surface albedo via the Charney mechanism, as plants are usually darker than the bare surface of the continents.
Uncovering The Role Of Oxygen Concentration In The Formation Of Early Earth Magma Ocean
It is widely accepted that the early Earth largely consisted of molten magma, forming a global ocean of magma. This extreme state of Earth was likely caused by the intense […]
A Reassessment of the “Hard-steps” Model For The Evolution Of Intelligent Life
While there exist more contentious geochemical and molecular clock estimates for these steps that would place them each farther back in time, we have chosen the least controversial evidence to […]
Climate Bistability At The Inner Edge Of The Habitable Zone Due To Runaway Greenhouse And Cloud Feedbacks
Understanding the climate dynamics at the inner edge of the habitable zone (HZ) is crucial for predicting the habitability of rocky exoplanets. Previous studies using Global Climate Models (GCMs) have […]
Planets Contain More Water Than Previously Thought
Most of a planet’s water is generally not found on the surface, but is hidden deep inside. This affects the potential habitability of distant worlds, as model calculations by researchers […]
Analysis Of Habitability And Stellar Habitable Zones From Observed Exoplanets
The investigation of exoplanetary habitability is integral to advancing our knowledge of extraterrestrial life potential and detailing the environmental conditions of distant worlds.
Scottish And Irish Rocks Confirmed As Being A Rare Record Of Snowball Earth
The study, published in the Journal of the Geological Society of London, found that the Port Askaig Formation, composed of layers of rock up to 1.1km thick, was likely laid […]
