The study of the evolution of Martian atmosphere and its response to EUV irradiation is an extremely important topic in planetary science. One of the dominant effects of atmospheric losses […]
Radiation
Posted inBiophysics, Biosignatures & Paleobiology, Desert Worlds, Extremeophiles and Extreme Environments, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report
UVC-Intense Exoplanets May Not Be Uninhabitable: Evidence from a Desert Lichen
Many of the recently discovered Earth-like exoplanets are hosted by M and F stars, stars that emit intense UVC, especially during a flare.
Posted inBiophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Interstellar, Origin & Evolution of Life, Panspermia, Radiation, Status Report
Virolithopanspermia: Might Viruses Be Transported In Rocks Through Space?
Material can apparently move between planets, at least on rare occasions. For example, meteorites have been found on Earth that appear to have originated on Mars, or even outside our […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Extinction events, Habitable Zones, Imaging & Spectroscopy, Interstellar, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release, Radiation
Supernovae May Have Kicked Off Abrupt Climate Shifts In The Past, And They Could Again
When a star explodes, it sends high-energy particles out in all directions. This burst of energy can travel through space for thousands of light-years, traversing solar systems and even galaxies.
Posted inAnalog Studies, Biophysics, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Mars, Microbiology & Virology, Radiation, Status Report
Survival Strategies Of Rhinocladiella Similis In Perchlorate-rich Mars Like Environments
Studying the survival of terrestrial microorganisms under Martian conditions, particularly in the presence of perchlorates, provides crucial insights for astrobiology.
Posted inExoplanets, -moons, -comets, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report
Far-ultraviolet Flares and Variability of the Young M dwarf AU Mic: a Non-detection of Planet c in Transit at Lyman-alpha
Atmospheric escape’s potential to shape the exoplanet population motivates detailed observations of systems actively undergoing escape.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Press Release, Radiation
Planet Formation In High UV Radiation Environments
The fundamental building blocks for planet formation can exist even in environments with extreme ultraviolet radiation, according to a new study by an international collaboration led by Penn State astronomers.
Posted inBiophysics, Biosignatures & Paleobiology, Mars, Missions & Hardware, Radiation, Robotics/Rovers/UAVs, Status Report, Tricorders & Sensors
Ultraviolet And Biological Effective Dose Observations At Gale Crater, Mars
The incident ultraviolet (UV) irradiance on the surface of Mars is strongly sterilizing and plays a critical role in atmospheric and near-surface photochemistry.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biophysics, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics
The Most Extreme Solar Storm Hit Earth In 12350 BC
New research uncovers the strongest solar event ever detected — rewriting our understanding of space weather and radiocarbon dating.
Posted inAstrochemistry, Astrogeology, Europa, Icy Worlds, Imaging & Spectroscopy, Radiation, Status Report
The Blinking Crystallinity Of Europa: A Competition Between Irradiation And Thermal Alteration
The surface of Europa experiences a competition between thermally-induced crystallization and radiation-induced amorphization processes, leading to changes of its crystalline structure.