![Time evolution of the probability distribution of the system for different temperatures as labeled and for fixed parameters: V=106 km3 , L=10 53 erg/s, r=0.01 AU, Grac=26.30 kJ/mol. The vertical axis is enantiomeric excess, and the horizontal axis is time in Myr scale. -- [astro-ph.HE]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/07/Supernova-Neutrinos.png?resize=1200%2C715&ssl=1)
[astro-ph.HE] We investigate the role of parity-violating interactions between supernova neutrinos and chiral molecules in nearby interstellar molecular clouds as a potential source of biomolecular homochirality.
astro-ph.HE
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Gaia - Planetary Perspectives, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report
Energy Deposition By Galactic Cosmic Rays And Implications For Ozone Chemistry
We present a Monte Carlo study of galactic cosmic-ray (GCR) energy deposition and its implications for stratospheric chemistry, performed with the Geant4 toolkit.
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 inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Intelligence & Language, SETI & Technosignatures, Status Report
Arecibo Wow! II: Revised Properties Of The Wow! Signal From Archival Ohio SETI Data
The Wow! Signal, detected in 1977 by the Ohio State University SETI project, remains one of the most intriguing unexplained radio transients. The most recent significant revision of its properties […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
NASA DARES: Possibilities for SETI at High Energy
High-energy SETI pushes astrobiology to its limits, testing the most fundamental needs of life and the most extreme limits of technology.
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Intelligence & Language, SETI & Technosignatures, Status Report
The First High Frequency Technosignature Search Survey with the Sardinia Radio Telescope
The quest for radio signals from technologically-advanced extraterrestrial intelligence has traditionally concentrated on the vicinity of 1.4 GHz.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Interstellar, Status Report
A Cosmic Formation Site of Silicon and Sulphur Revealed by a New Type of Supernova Explosion
The cores of stars are the cosmic furnaces where light elements are fused into heavier nuclei. The fusion of hydrogen to helium initially powers all stars. The ashes of the […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report, Stellar Cartography
Arecibo Wow! I: An Astrophysical Explanation for the Wow! Signal
The Ohio State University Big Ear radio telescope detected in 1977 the Wow! Signal, one of the most famous and intriguing signals of extraterrestrial origin. Arecibo Wow! is a new […]
Posted inAstronomy & Telescopes, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography
X-ray Emission of Nearby Low-mass and Sun-like Stars with Directly Imageable Habitable Zones
Stellar X-ray and UV radiation can significantly affect the survival, composition, and long-term evolution of the atmospheres of planets in or near their host star’s habitable zone (HZ).
Posted inAstronomy & Telescopes, Status Report, Stellar Cartography
Partial Tidal Disruption Events: The Elixir Of Life
In our Galactic Center, about 10,000 to 100,000 stars are estimated to have survived tidal disruption events, resulting in partially disrupted remnants.