Science Advances via PubMed
Posted inAstrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Imaging & Spectroscopy, Mars, Missions & Hardware, Robotics/Rovers/UAVs, Sample Return, Status Report

Inorganic Interpretation of Luminescent Materials Encountered by the Perseverance Rover on Mars

by Keith Cowing

A major objective of the Mars 2020 mission is to sample rocks in Jezero crater that may preserve organic matter for later return to Earth.

Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Lava / magma ocean / Volcanic Worlds, Status Report, Venus

The Punctuated Evolution of the Venusian Atmosphere From a Transition in Mantle Convective Style and Volcanic Outgassing

by Keith Cowing

A key question in the planetary sciences centers on the divergence between the sibling planets, Venus and Earth. Venus currently does not operate with plate tectonics, and its thick atmosphere […]

Posted inAstrogeology, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Imaging & Spectroscopy, Microbiology & Virology, Status Report

Nanoparticulate Apatite and Greenalite In The Oldest, Well-preserved Hydrothermal Vent Precipitates

by Keith Cowing

Paleoarchean jaspilites are used to track ancient ocean chemistry and photoautotrophy because they contain hematite interpreted to have formed following biological oxidation of vent-derived Fe(II) and seawater P-scavenging.

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