Carbonaceous chondrites are some of the most primitive meteorites and derive from planetesimals that formed a few million years after the beginning of the solar system.
dust
Posted inAstrochemistry, Astrogeology, Meteorites & Asteroids, Status Report
Representation Of S-process Abundances For Comparison To Data From Bulk Meteorites
Analysis of bulk meteorite compositions has revealed small isotopic variations due to the presence of material (e.g., stardust) that preserved the signature of nuclear reactions occurring in specific stellar sites. […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Mars, Press Release
Solid‒gas Carbonate Formation During Dust Events On Mars
A joint research team led by Dr. Xiaohui Fu and Dr. Zhongchen Wu from Shandong University, China, proposed a new carbonate formation mechanism in Martian dust activities based on simulation […]
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Status Report
A Study Of Carbon-rich Post-AGB Stars In the Milky Way To Understand The Production Of Carbonaceous Dust From Evolved Stars
The goal of this study is to reconstruct the evolution and the dust formation processes during the final AGB phases of a sample of carbon-rich, post-AGB Galactic stars, with particular […]
Posted inAstrochemistry, Astrogeology, Imaging & Spectroscopy, Interstellar, Status Report
Carbonaceous Dust Grains Within Galaxies Seen In The First Billion Years Of Cosmic Time
Interstellar dust captures a significant fraction of elements heavier than helium in the solid state and is an indispensable component both in theory and observations of galaxy evolution.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Habitable Zones, Press Release
A 3-Dimension Model of Volcanism Volatiles Contribution on Atmospheric Chemical Abundance of Habitable Planets
The volcanism plays an important part in mass exchange circle to bring matter from core of planet to atmosphere.
Posted inAstrochemistry, Biosignatures & Paleobiology, Europa, Missions & Hardware, Press Release
University of Colorado Boulder’s Europa SUrface Dust Analyzer (SUDA)
In less than a decade, technology developed in Colorado will travel to Jupiter’s moon Europa—a cold moon where a thick crust of ice covering the surface obscures a potentially vast […]
Posted inAstrochemistry, Astrogeology, Press Release, Water/Hycean Worlds & Oceanography
Space Dust Analysis Could Solve The Mystery Of The Origins Of Earth's Water
An international team of scientists may have solved a key mystery about the origins of the Earth’s water, after uncovering persuasive new evidence pointing to an unlikely culprit — the […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Status Report, Water/Hycean Worlds & Oceanography
Dusty Iron in the Ancient Oceans
A recent study examines the affect of dust-borne iron on primary productivity in the oceans of the ancient Earth.
Posted inBiogeochemical Cycles & Geobiology, Press Release
Geoscientists Document 300 Million Year Old Atmospheric Dust
Dust plays a crucial role in the life and health of our planet. In our modern world, dust-borne nutrients traveling in great dust storms from the Saharan Desert fertilize the […]