The deadliest mass extinction of all took a long time to kill 90 percent of Earth’s marine life–and it killed in stages–according to a newly published report. It shows that […]
Biogeochemical Cycles & Geobiology
Posted inBiogeochemical Cycles & Geobiology
7th International Symbiosis Society Congress: The Earth's Vast Symbiosphere
Date: 22 – 28 July, 2012Location: Krakow, Poland http://www.eko.uj.edu.pl/symbiosis/Hosted by one of the oldest and prominent universities in Europe, Jagiellonian University, the meeting will welcome hundreds of researchers, educators, and […]
Posted inBiogeochemical Cycles & Geobiology
Follow the Uranium
Researchers from NAI’s Arizona State University Team and NASA’s Exobiology Program have developed a novel geochemical tool that compares the partitioning of uranium isotopes from seawater into carbonates. A decrease […]
Posted inAstrobiology (general), Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments
Scouting for Astrobiology
When Dr. Eric Boyd of the NAI’s Montana State University Team goes searching for evidence of what extra-terrestrial life might look like, he heads to Norris Geyser Basin in Yellowstone […]
Posted inBiogeochemical Cycles & Geobiology
NAI Director's Seminar: John Peters, "New Insights into the Transition of Iron-sulfur Compounds from Minerals to Enzymes"
Join us for the next NAI Director’s Seminar! Please RSVP if your site will be joining. Date/Time: Monday, November 28, 2011 11:00AM Pacific Presenter: John Peters (Montana State University) Abstract: […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Icy Worlds, Mars, Meteorites & Asteroids, Press Release
Taking The Temperature Of Mars’ Past
Researchers at the California Institute of Technology (Caltech) have directly determined the surface temperature of early Mars for the first time, providing evidence that’s consistent with a warmer and wetter […]
Posted inBiogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics
Integrating Geochemistry and (Meta)genomics in the Geothermal Springs in Yellowstone National Park: Mapping the Functional Limits of Life in Early Earth Analog Environments
Join us for the third in a series of NASA Astrobiology Postdoctoral Program (NPP) seminars! Date/Time: Monday, October 17th, 11am Pacific Time Title: “Integrating Geochemistry and (Meta)genomics in the Geothermal […]
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Education and Outreach, Origin & Evolution of Life
Origin of Earth's Water – Astrobiology Postdoctoral Fellow – Institute for Astronomy, University of Hawai'i Manoa
The Institute for Astronomy (IfA) invites applications for a Postdoctoral Fellowship with interests in the origin of Earth’s water to work with the University of Hawai’i’s NASA Astrobiology Institute lead […]
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology
Biomineralization: Linking Biology and Geochemistry
Fossils are essential to our understanding of the history and origins of complex life. New work from NAI’s MIT and Penn State teams describes exquisitely preserved microfossils from mid-Neoproterozoic (811-717 […]
Posted inBiogeochemical Cycles & Geobiology
A New Look at the Sulfur Cycle
The record of Earth’s sulfur cycle preserved in sedimentary rocks is commonly used to track the evolution of microbial sulfur metabolisms and levels of atmospheric oxygen throughout geologic history. Sulfur […]