The CM chondrites are characterized as primary accretionary rocks which originate from primitive water-rich asteroids formed during the early Solar System.
meteorite
Grain Size Effects on UV-MIR (0.2-14 micron) Spectra of Carbonaceous Chondrite Groups
Carbonaceous chondrites are among the most important meteorite types and have played a vital role in deciphering the origin and evolution of our solar system.
Near-mid Infrared Spectroscopy Of Carbonaceous Chondrites: Insights Into Spectral Variation Due To Aqueous Alteration And Thermal Metamorphism In Asteroids
Carbonaceous chondrites (CCs) are windows into the early Solar system and the histories of their parent bodies. Their infrared spectral signatures are powerful proxies for deciphering their composition and evolution […]
The Fate of Primary Iron Sulfides in the CM1 Carbonaceous Chondrites: Effects of Advanced Aqueous Alteration on Primary Components
We have carried out a SEM-EPMA-TEM study to determine the textures and compositions of relict primary iron sulfides and their alteration products in a suite of moderately to heavily-altered CM1 […]
Mineral Indicators of Geologically Recent Past Habitability on Mars
We provide new support for habitable microenvironments in the near-subsurface of Mars, hosted in Fe- and Mg-rich rock units, and present a list of minerals that can serve as indicators […]
The Role of Low-energy (< 20 eV) Secondary Electrons in the Extraterrestrial Synthesis of Prebiotic Molecules
We demonstrate for the first time that Galactic cosmic rays with energies as high as 1e10 eV can trigger a cascade of low-energy (< 20 eV) secondary electrons that could […]
Renaissance For Magnetotactic Bacteria In Astrobiology
Capable of forming magnetofossils similar to some magnetite nanocrystals observed in the Martian meteorite ALH84001, magnetotactic bacteria (MTB) once occupied a special position in the field of astrobiology during the […]
Extraterrestrial Materials Analysis Group (ExMAG) Call For Applications For 2024 Membership
The Extraterrestrial Materials Analysis Group (ExMAG) is seeking applications for open positions starting in 2024! Deadline for applications is December 8, 2023.
Fossil And Present-day Stromatolite Ooids Contain A Meteoritic Polymer Of Glycine And Iron
Hemoglycin, a space polymer of glycine and iron, has been identified in the carbonaceous chondritic meteorites Allende, Acfer 086, Kaba, Sutters Mill and Orgueil.
Analysis of CN Emission As A Marker Of Organic Compounds In Meteoroids Using Laboratory Simulated Meteors
Fragments of small solar system bodies entering Earth’s atmosphere have possibly been important contributors of organic compounds to the early Earth.
