Planetary atmospheric energy budgets primarily depend on stellar incident flux. However, stellar variability can have major consequences for the evolution of planetary climates.
Earth-like exoplanet
Posted inAstrochemistry, Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Status Report
Resonant Structures In Exozodiacal Clouds Created By Exo-Earths In The Habitable Zone Of Late-type Stars
Earth-like exoplanets can create resonant structures in exozodiacal dust through mean motion resonances (MMRs).
Posted inHabitable Zones, Imaging & Spectroscopy, Origin & Evolution of Life, Radiation, Space Weather & Heliophysics, Status Report
The Impact Of Stellar Winds And Tidal Locking Effects On The Habitability Of Earth-like Exoplanets Around M Dwarf Stars
We present an assessment of the effects of stellar wind magnetic and mechanical components on the habitability of Earth-like exoplanets orbiting the inner and outer radii of the habitable zone […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Spectra Of Earth-like Exoplanets With Different Rotation Periods
We investigate the spectra of Earth-like planets but with different axial rotation periods.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Moon, Press Release
Planet Earth In Reflected And Polarized light – III. Modeling And Analysis Of A Decade-long Catalog Of Earthshine Observations
Earthshine observations offer a unique opportunity to study Earth as an exoplanet seen from the Moon. As the Sun-Earth-Moon geometry changes, Earth can be observed as a spatially unresolved exoplanet […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Reassessment Of Kepler’s Habitable Zone Earth-like Exoplanets With Data-driven Null-signal Templates
One of the primary mission goals of the Kepler space telescope is to detect Earth-like terrestrial planets in the habitable zone around Sun-like stars.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Wavelength Requirements For Life Detection Via Reflected Light Spectroscopy Of Rocky Exoplanets
Searching for signs of life is a primary goal of the Habitable Worlds Observatory (HWO). However, merely detecting oxygen, methane, or other widely discussed biosignatures is insufficient evidence for a […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Press Release
Unraveling The Non-equilibrium Chemistry Of The Temperate Sub-Neptune K2-18 b
The search for habitable, Earth-like exoplanets faces major observational challenges due to their small size and faint signals.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Status Report
Direct High-Resolution Imaging of Earth-Like Exoplanets
We have surveyed all conventional methods proposed or conceivable for obtaining resolved images of an Earth-like exoplanet.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Planet Earth in Reflected and Polarized Light: II. Refining Contrast Estimates for Rocky Exoplanets with ELT and HWO
The characterization of nearby rocky exoplanets will become feasible with the next generation of telescopes, such as the Extremely Large Telescope (ELT) and the mission concept Habitable Worlds Observatory (HWO).