![The region in which dark matter impacts may leave detectable surface features on Ganymede. Gray regions correspond to existing constraints [33, 35, 37]. The light purple region is the region in which the dark matter has sufficient initial energy to penetrate through the 12 km conductive ice layer on Ganymede’s surface. The darker purple region corresponds to when the dark matter penetrates the entirety of Ganymede, leaving both an entrance and exit wound. Rough estimates for the approximate number of craters and crater radius from Eqs. 1 and 13 are provided on the top and right axes respectively, rounded to one significant figure for readability. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/08/Dark-Wounds-On-Icy-Moons.png?resize=1200%2C720&ssl=1)
Dark matter in the form of macroscopic composites is largely unconstrained at masses of ∼1011−1017 g. In this mass range, dark matter may collide with planetary bodies, depositing an immense […]
hep-ph
![The parameter region of the AWDM. The correct baryon asymmetry can be obtained in the blue band. The region favored by the homochirality of the amino acids is represented by the red band. Here we use ξB = 0.1 − 10 while ξAA = 0.01 − 100. The gray (light gray) region is excluded by the observation relevant to the X-ray emission adopted from [39] (phase-space bound). The dotted line denotes the future reach by Athena [69]. -- hep-ph](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/05/Asymmetric-Warm-Dark-Matter.png?resize=1200%2C719&ssl=1)
Posted inAstrochemistry, Biochemistry & Organic Chemistry, Biophysics, Status Report
Asymmetric Warm Dark Matter: From Cosmological Asymmetry to Chirality of Life
We investigate a novel scenario involving asymmetric keV-range dark matter (DM) in the form of right-handed (sterile) neutrinos.