TRAPPIST-1e is a tidally locked rocky exoplanet orbiting the habitable zone of an M dwarf star. Upcoming observations are expected to reveal new rocky exoplanets and their atmospheres around M […]
Ozone
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Proxima Centauri, Space Weather & Heliophysics, Status Report, TRAPPIST-1
Lethal Surface Ozone Concentrations Are Possible On Habitable Zone Exoplanets
Ozone (O3) is important for the survival of life on Earth because it shields the surface from ionising ultraviolet (UV) radiation. However, the existence of O3 in Earth’s atmosphere is […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release, Proxima Centauri
The Impact Of Ozone On Earth-like Exoplanet Climate Dynamics: The Case Of Proxima Centauri b
The emergence of the James Webb Space Telescope and the development of other advanced observatories (e.g., ELTs, LIFE and HWO) marks a pivotal moment in the quest to characterize the […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Press Release
Massive 2022 Hunga Tonga-Hunga Ha’apai Eruption Reduced Earth’s Ozone Levels
When the Hunga Tonga-Hunga Ha’apai volcano erupted on January 15, 2022 in the South Pacific, it produced a shock wave felt around the world and triggered tsunamis in Tonga, Fiji, […]
Posted inAstrochemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Is Ozone A Reliable Proxy For Molecular Oxygen? I. The O2-O3 Relationship For Earth-like Atmospheres
Molecular oxygen (O2) paired with a reducing gas is regarded as a promising biosignature pair for the atmospheric characterization of terrestrial exoplanets. In circumstances when O2 may not be detectable […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
A Glimpse of Habitability When The Ozone Layer first Formed on Earth
Kepler-96 is an active solar-type star harbouring a Super-Earth planet in close orbit. Its age of 2.3 Gyr is the same as the Sun when there was a considerable increase […]
Posted inHabitable Zones
Ozone Holes Might Slightly Warm Our Planet
A lot of people mix up the ozone hole and global warming, believing the hole is a major cause of the world’s increasing average temperature. Scientists, on the other hand, […]