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).
radiation
Posted inAnalog Studies, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report
Evaluating Habitability and Biosignature Detection on TOI-700 d: The Role of UV Environment and Atmospheric Pressure
M dwarfs have long been prime targets in the search for habitable exoplanets, owing to their abundance in the galaxy and the relative ease of detecting Earth-sized worlds within their […]
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 inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Fossils & Paleontology, Imaging & Spectroscopy, Nomenclature, Systematics, Natural History, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography
Neutron Scanning Of Coral Fossils Reveals Earth’s Hidden Climate History
A University of Sydney student has developed a completely new way to peer inside coral fossils to recover lost records of past climate change.
Posted inExoplanets, -moons, -comets, Habitable Zones, Space Weather & Heliophysics, Status Report, Stellar Cartography
Evolution of Stellar Activity and Habitable zone: I. Ultraviolet Emission of Dwarfs in Open Clusters and Field Stars
Near-ultraviolet (NUV) radiation from dwarf stars plays a critical role in shaping the habitability of planetary systems, yet its long-term evolution across different spectral types remains poorly investigated.
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 […]
Posted inMicrobiology & Virology, Origin & Evolution of Life, Status Report, Water/Hycean Worlds & Oceanography
Galactic Forcing Increases Origination Of Marine Microplankton
The continuous flux of Galactic cosmic rays that bombard Earth’s atmosphere creates ionizing radiation that can damage the DNA of living organisms.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biosignatures & Paleobiology, Cryobiology, Desert Worlds, Extremeophiles and Extreme Environments, Habitable Zones, Mars, Microbiology & Virology, Press Release, Radiation
Super Fungi Survive Extreme Mars-like Environments
People have long been intrigued by the possibility of life beyond Earth and how it might endure in extraterrestrial environments. There is no confirmed evidence of extraterrestrial life, not even […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release, Radiation, Space Weather & Heliophysics, TRAPPIST-1
Flares On TRAPPIST-1 Reveal The Spectrum Of Magnetic Features On Its Surface
TRAPPIST-1 is an M8 dwarf hosting seven known exoplanets and is currently one of the most frequently observed targets of the James Webb Space Telescope (JWST).