hydrated asteroid Archives

Optical image of the clastic matrix region in LAR 12252 that was studied using S-XANES. Notable phases include enstatite (example outlined in red), sulphides (example outlined in yellow), a small chondrule fragment (outlined in orange), and fine matrix (example highlighted in pink). b Corresponding map calculated from the SXANES spectra of the region shown in a, showing the amplitude of the H-S peak at each point normalised to the average amplitude of point spectra measured from chondrule mesostasis. Black pixels correspond to points where the S-XANES spectra that did not contain a resolvable H-S peak. White pixels correspond to points where the SXANES spectra could not be fitted due to their quality or noise in the spectra. -- astro-ph.EP

Astrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Meteorites & Asteroids, Status Report, Water/Hycean Worlds & Oceanography

The Source of Hydrogen in Earth’s Building Blocks

by Keith CowingJune 21, 2024June 21, 2024

Despite being pivotal to the habitability of our planet, the process by which Earth gained its present-day hydrogen budget is unclear. Due to their isotopic similarity to terrestrial rocks across […]

hydrated asteroid

The Source of Hydrogen in Earth’s Building Blocks

Potential Survivable Niches For Microbial Life On The Lunar South Pole

JWST Telemetry Combined With Active Coronagraphy: Raw Contrast Predictions For Exoplanet Imaging With The Habitable Worlds Observatory

Antarctica Is Home To Microbes Found Nowhere Else On Earth

Study: Peptides Can Form Well-defined Structures In Harsh, Venus-like Conditions

Modeling Carbon-Based Planets with MAGRATHEA