When Carl Sagan and Ed Salpeter envisioned potential Sinkers, Floaters, and Hunters living in Jupiter’s clouds in 1976 (C. Sagan & E. E. Salpeter 1976), the nature of life in […]
Many known exoplanets harbor clouds, which lead to degeneracies in spectroscopic models between particle composition and size. Polarimetry, however, provides independent assessment.
Current climate models have so far been unable to adequately reproduce the clouds over the Southern Ocean around Antarctica. An international team has now taken an important step towards filling […]
Astrophysicists have gained precious new insights into how distant “exoplanets” form and what their atmospheres can look like, after using the James Webb Telescope to image two young exoplanets in […]
Atmospheric organic hazes are widespread across various planetary bodies and have significant effects on both the surface and atmosphere. In this study, we investigate the optical and hygroscopic properties of […]
A planet’s spectrum is dynamic and only represents a time-dependent snapshot of its properties. Changing atmospheric conditions due to climate and weather patterns, particularly variation in cloud cover, can significantly […]
![Comparison of Venus and Earth atmospheric profiles (left) and depth-equivalent Earth altitude versus Venus altitude (right). Data of Venus atmosphere taken from [21]; Earth atmosphere represented with Linsley’s model [17, 22]. The vertical green dashed lines at the left panel indicate the extremes of the “Habitable Zone” (HZ) of reference [23] (venusian altitudes in the range 42.8 km to 62.2 km). -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/02/The-Venusian-Chronicles.png?resize=1200%2C720&ssl=1)
Venus’ atmosphere — specifically its clouds buoyed up 40 to 60 km above the surface — has long been suspected to encompass a biosphere where Earth-like living organisms could grow […]
Highly-irradiated gas giant exoplanets are predicted to show circulation patterns dominated by day-to-night heat transport and a spatial distribution of clouds that is driven by advection and local heating.
Despite widespread adoption of deep learning models to address a variety of computer vision tasks, planetary science has yet to see extensive utilization of such tools to address its unique […]
Isolated planetary-mass objects share their mass range with planets but do not orbit a star. They lack the necessary mass to support fusion in their cores and thermally radiate their […]
