With recent advances in exoplanet observational techniques enabling the discovery of increasingly smaller planets, a crucial question emerges in the search for habitable planets: how small can a planet be […]
The Solar Neighborhood is dominated by stars smaller, colder, and fainter than the Sun: the M dwarfs.
How primitive plants evolved to survive Earth’s most catastrophic extinction event.
Photosynthetic bacteria helped shape Planet Earth. Among them are cyanobacteria that produced the oxygen in our atmosphere and made complex life possible, captivating scientists for decades. Now, researchers at the […]
![[L] NASA ID: art002e000192 art002e000192 (April 3, 2026) -- NASA [R] art002e000193 (April 3, 2026) -- NASA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/04/Our-Home-World-As-Seen.png?resize=1200%2C718&ssl=1)
Left: A view of Earth taken by NASA astronaut and Artemis II Commander Reid Wiseman from one of the Orion spacecraft’s window after completing the translunar injection burn on April […]
New observations are opening the possibility of characterising habitable environments in exoplanetary systems, with the recent example of the candidate hycean world K2-18 b.
The history of the Earth is written on the great tablets of tectonic plates.
Earth’s climate is influenced by over a dozen types of feedback, but only three dominate its long-term climate behavior. Models of the exoplanet habitable zone (HZ) assume that this is […]
Scientists say multiple Earth system components appear closer to destabilization than previously believed, putting the planet in increased danger of following a “hothouse” path driven by feedback loops that can […]
Earth’s climate is influenced by over a dozen feedbacks, but only three dominate its long-term climate behavior. Models of the exoplanet habitable zone (HZ) assume that this is similar for […]
