Space weather is among the most powerful and least understood forces shaping planetary atmospheres. In our Solar System, we observe its effects directly: atmospheric escape, chemical disruption, and spectacular auroral […]
Radiation
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics
First Confirmed Sighting Of Explosive Burst On Nearby Star
The atmosphere-stripping ability of the CME is an exciting discovery for our hunt for life around other stars.
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics
The Largest Ground-based Catalogue Of M-dwarf Flares
We present the largest ground-based catalogue of M-dwarf flares to date, comprising 1,229 time-resolved events identified in Zwicky Transient Facility Data Release 17.
Posted inHabitable Zones, Origin & Evolution of Life, Press Release, Radiation, Space Weather & Heliophysics
Coronal Mass Ejections At The Dawn Of The Solar System
Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs).
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 inAstrochemistry, Astrogeology, Enceladus, Icy Worlds, Imaging & Spectroscopy, Radiation, Saturn, Status Report
Water-group Ion Irradiation Studies Of Enceladus Ice Analogues: Can Radiolysis Account For Material In And Around The South Polar Plume?
Saturn’s magnetosphere contains trapped plasma and energetic charged particles which constantly irradiate the surface of Enceladus.
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report, Stellar Cartography
Exploring Stellar Activity In A Sample Of Active M Dwarfs
Most M dwarfs show higher chromospheric activity, often exceeding solar levels. Characterizing stellar activity is essential, particularly since these stars are prime targets in the search for habitable exoplanets.
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Mars, Microbiology & Virology, Origin & Evolution of Life, Panspermia, Planetary Protection & Biosafety, Radiation, Sample Return, Status Report
Endospore Integrity And Viability Of Bacillus subtilis On Simulated Martian Regolith In Rotational UVC Radiation Exposures
Current understanding of Martian regolith has advanced due to various rover explorations. Due to this, there are now several variants of Martian regolith that are chemically known and commercially available.
Posted inFossils & Paleontology, Habitable Zones, Mars, Radiation, Space Weather & Heliophysics, Status Report, Venus
Extreme Geomagnetic Storm On Early Earth Induced by Corotating Interaction Regions from the Young Sun
Recent multiwavelength observations of young solar analogs suggest that the young Sun in the first 600 Myr was a magnetically active star that produced an X-ray and Extreme-UV (EUV) bright […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Icy Worlds, Imaging & Spectroscopy, Interstellar, Radiation, Status Report
X-ray Photodesorption Of Complex Organic Molecules In Protoplanetary Disks
Context. Nonthermal desorption from interstellar ices induced by X-rays, known as X-ray photodesorption, is a possible route to explain gas phase molecules detected in protoplanetary disks. However, the efficiency of […]