Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Meteorites & Asteroids, Origin & Evolution of Life, Panspermia, Press Release

Meteorite-common Amino Acid Induces Formation Of Nanocavities In Clay Mineral

Researchers at the universities of Amsterdam and Utrecht have observed the formation of nanocavities in montmorillonite clay under exposure to gamma-aminobutyric acid, a molecule commonly found on meteorites.

Posted inBiophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Interstellar, Origin & Evolution of Life, Panspermia, Radiation, Status Report

Virolithopanspermia: Might Viruses Be Transported In Rocks Through Space?

Material can apparently move between planets, at least on rare occasions. For example, meteorites have been found on Earth that appear to have originated on Mars, or even outside our […]

Posted inBiosignatures & Paleobiology, Extremeophiles and Extreme Environments, Microbiology & Virology, Missions & Hardware, Panspermia, Planetary Protection & Biosafety, Sample Return, Status Report

Extremotolerant Bacteria Identified In The NASA Mars Phoenix Cleanroom

Abstract Background Human-designed oligotrophic environments, such as cleanrooms, harbor unique microbial communities shaped by selective pressures like temperature, humidity, nutrient availability, cleaning reagents, and radiation. Maintaining the biological cleanliness of […]

Posted inBiophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Microgravity, Panspermia, Space Life Science, Space Stations, Status Report

Exposure of Phage T7 To Simulated Space Environment: The Effect Of Vacuum and UV-C Radiation

The experiment “Phage and Uracil Response” (PUR) will be accommodated in the EXPOSE facility of the International Space Station (ISS). Its objective is to examine and quantify the effect of […]

Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Origin & Evolution of Life, Panspermia, Status Report

Abiotic Origin Of Citric Acid Cycle Intermediates

The molecular framework for protometabolism—chemical reactions in a prebiotic environment preceding modern metabolism—has remained unknown in evolutionary biology. Mono-, di-, and tricarboxylic acids that comprise contemporary metabolism, such as the […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Microgravity, Panspermia, Sample Return, Space Life Science, Space Stations, Status Report

Biomarker Preservation in Antarctic Sandstones after Prolonged Space Exposure Outside the International Space Station During the ESA EXPOSE-E Lichens and Fungi Experiment

A primary aim of current and future space exploration missions is the detection and identification of chemical and biological indicators of life, namely biomarkers, on Mars.

Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Gaia - Planetary Perspectives, Imaging & Spectroscopy, Panspermia, Status Report, Terraforming & Geoengineering

An Agnostic Biosignature Based on Modeling Panspermia and Terraformation

A fundamental goal of astrobiology is to detect life outside of Earth. This proves to be an exceptional challenge outside of our solar system, where strong assumptions must be made […]

Posted inArtemis & Lunar Exploration, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Moon, Panspermia, Planetary Protection & Biosafety, Status Report

A Microbial Survival Model For The permanently Shadowed Regions Of The Moon Shows Long-Term Survival of Terrestrial Microbe Forward Contamination

Based on previous models of microbial survival there are regions in the solar system which have high preservation potential for terrestrial spore-forming microbes such as Bacillus subtilis.

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