Context. The intense X-ray and UV emission of some active M stars has raised questions about the habitability of planets around M-type stars. Aims. We aim to determine the unbiased […]
habitability
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Proxima Centauri, Radiation, Space Weather & Heliophysics, Status Report, Stellar Cartography, TRAPPIST-1
Identifying Flare Locations Through Exoplanet Transit Occultations
M dwarfs are the most common stars in the galaxy, with long lifespans, a high occurrence rate of rocky planets, and close-in habitable zones.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Status Report, Water/Hycean Worlds & Oceanography
The Role Of Atmospheric Composition In Defining The Habitable Zone Limits And Supporting E. coli Growth
Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Network and Kinetics-based Biosignatures: Implications for the Putative Habitable World Observatory Design
The proposed Habitable Worlds Observatory is intended to observe the atmospheres of nearby terrestrial exoplanets with a resolution greater than that of any previous instrument. While these observations present a […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Status Report, Water/Hycean Worlds & Oceanography
Ignan Earths: Habitability of Terrestrial Planets With Extreme Internal Heating
Is it possible for a rocky planet to have too much internal heating to maintain a habitable surface environment? In the Solar System, the best example of a world with […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Missions & Hardware, Status Report, Water/Hycean Worlds & Oceanography
Nominations Sought For The Habitable Worlds Observatory Community Science and Instrument Team
Dear Colleagues: NASA is soliciting self-nominations from interested individuals to participate as members of the Habitable Worlds Observatory (HWO) Community Science and Instrument Team (CSIT). As recommended by the 2020 […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The RISTRETTO Simulator: Exoplanet Reflected Spectra
The upcoming Ristretto spectrograph is dedicated to the detection and analysis of exoplanetary atmospheres, with a primary focus on the temperate rocky world Proxima b.
Posted inBiochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Commercial & Private Sector, Exoplanets, -moons, -comets, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Nanotechnology & SynBio, Status Report
Raiding Nature’s Genetic Toolbox For UV-C Resistance By Functional Metagenomics
As we assess the habitability of other worlds, we are limited by being able to only study terrestrial life adapted to terrestrial conditions.
Posted inAnalog Studies, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Fossils & Paleontology, Habitable Zones, Icy Worlds, Mars, Status Report, Water/Hycean Worlds & Oceanography
The Elusive Nature Of Martian Liquid Brines
The possible presence of brines on Mars adds an intriguing dimension to the exploration of Martian environments.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Missions & Hardware, Press Release, Radiation, Space Weather & Heliophysics, TRAPPIST-1
Parker Solar Probe Has Touched The Outer Reaches Of A Star
Editor’s note: The Parker Solar Probe recently conducted a close fly-by of a star – our sun. This is the closest that any human object has ever gotten to any […]