[astro-ph.EP] Atmospheric photochemical models incorporating the impacts of stellar flares often assume a ∼9,000 K spectrum at ultraviolet-optical wavelengths.
atmosphee
![Life 2.0 mission concept and simulated biosignature spectroscopy. The distributed array observes a common target with many one-meter telescope modules. The example spectra illustrate UV-optical atmospheric signatures and the simulated recovery of O₃, O₂, and H₂O after calibrated spectral co-addition. -- [astro-ph.IM]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Life-2.0.jpg?resize=1200%2C719&ssl=1)
Posted inBiosignatures & Paleobiology
Life 2.0: A Scalable Distributed Space-Telescope Array For Biosignature Spectroscopy
[astro-ph.IM] Answering the question “Are we alone?” requires atmospheric spectroscopy of nearby terrestrial planets. For an Earth–Sun analog, even the strongest transmission signals are expected to be of order 1 […]
Posted inExoplanets, -moons, -comets
Welcoming The Virtual Planetary Laboratory To Its New Home At The SETI Institute
[SETI Institute] The Virtual Planetary Laboratory (VPL), one of NASA’s flagship astrobiology research teams, has officially moved its institutional home to the SETI Institute. In 2026 the VPL will also […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Famous Pink Planet Harbors A Salty Surprise
Northwestern University-led astronomers have discovered salty skies surrounding the universe’s famous “Pink Planet.”
Posted inAriel Mission, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Brown Dwarfs, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Assessing Ariel’s Capabilities To Observe Free-floating Brown Dwarfs
The primary goal of the Ariel space telescope is to conduct the biggest spectroscopic survey of transiting exoplanets to characterize their atmospheres and weather.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Mars, Status Report
The Role Of The Hubble Space Telescope In Advancing Our Understanding Of Atmospheric Escape In Exoplanets
An important evolutionary pathway for planetary atmospheres is escape to space, which has been studied on Earth and Mars for several decades and more recently in exoplanets.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Simulation Of The Spin Evolution Of Some Selected Exoplanets And Inferences On Their Climate
In this work, using the simulator VPLanet, we analyze the spin evolution of some selected exoplanets due to the tidal interaction with their host star.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report, Venus
Equifinality Of Venus-like CO2 Atmospheres
While Earth locks much of its carbon in its crust as carbonates, Venus retains a comparable carbon inventory almost entirely in its atmosphere as CO2.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Press Release
Giant Planet TOI-5205 b Orbits A Small Red Star
Massive exoplanet reveals new insights into the formation of planets and their relationship to a host star.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
A Cloudy Fit To The Atmosphere of WASP-107 b
Context. WASP-107 b has been observed comprehensively by JWST in the near- and mid-IR bands, making it an ideal planet to probe the composition and internal dynamics. Recent analysis reveals […]