![[LEFT] Outgoing longwave radiation of six potentially visible hemispheres of the planet. Teegarden's Star is one of the most promising targets for the first observations of LIFE, as a non-transiting rocky planet with similar bulk properties to the Earth, and a relatively quiescent M-dwarf host star. [RIGHT} Cloud fraction averaged over all pressure levels.]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/12/Disentangling-The-Hemispheres.png?resize=1200%2C720&ssl=1)
We use LIFEsim, a software developed by the ETH LIFE team, along with thermal emission maps obtained from a suite of three-dimensional global climate model (GCM) simulations, to explore the […]
Teegarden's Star
![[L] Latitude-longitude maps of surface temperature overlaid with the wind field at the bottom layer, and surface precipitation. The black contours indicate where the surface temperature is 50◦ Celsius. [R] Latitude-longitude maps of surface temperature overlaid with the wind field at the bottom layer, and surface precipitation, for ISR = 1580 Wm−2 , which brings the climate to the onset of a runaway greenhouse effect. The minimum surface temperature between the two surface albedo cases is 345 K or 72◦C.Latitude-longitude maps of surface temperature overlaid with the wind field at the bottom layer, and surface precipitation, for ISR = 1580 Wm−2 , which brings the climate to the onset of a runaway greenhouse effect. The minimum surface temperature between the two surface albedo cases is 345 K or 72◦C. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/10/Near-The-Runaway.png?resize=1200%2C716&ssl=1)
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Near The Runaway: The Climate And Habitability Of Teegarden’s Star b
Teegarden’s Star b, a nearby terrestrial world receiving an Earth-like instellation, is a prime candidate for next-generation observatories targeting temperate exoplanets in their habitable zones.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Detailed Architecture Of The L 98-59 System And Confirmation Of A Fifth Planet In The Habitable Zone
The L 98-59 system, identified by TESS in 2019, features three transiting exoplanets in compact orbits of 2.253, 3.691, and 7.451 days around an M3V star, with an outer 12.83-day […]
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Status Report
Coronal And Chromospheric Activity Of Teegarden’s Star
Teegarden’s star is a late-type M-dwarf planet host, typically showing only rather low levels of activity. In this paper we present an extensive characterisation of this activity at photospheric, chromospheric, […]
![Spectral flux contributions over the range [1, 25] µm for a surface temperature of (Top) 250 K and (Bottom) 650 K. The white lines delineate the areas where the CFF per spectral band is higher than unity. The spectral range of LIFE and the vertical extent of the cloud are overplotted. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/11/The-Impact-Of-Water-Clouds-On.png?resize=1200%2C716&ssl=1)
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The Impact Of Water Clouds On The Prospective Emission Spectrum Of Teegarden’s Star b As Observed By LIFE
Non-transiting terrestrial planets will be accessible by upcoming observatories of which LIFE is an example.
Posted inExoplanets, -moons, -comets, Habitable Zones, Status Report
Teegarden’s Star Revisited: A Nearby Planetary System With At Least Three Planets
The two known planets in the planetary system of Teegarden’s Star are among the most Earth-like exoplanets currently known. Revisiting this nearby planetary system with two planets in the habitable […]
Posted inExoplanets, -moons, -comets
Two Earth-like Planets Discovered Near Teegarden's Star
An international research team led by the University of Göttingen has discovered two new Earth-like planets near one of our closest neighboring stars. “Teegarden’s star” is only about 12.5 light-years […]