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 […]
Biogeochemical Cycles & Geobiology
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 […]
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Status Report
New Evidence Challenges Oldest Signs of Life
Ancient rocks are shedding new light on the timeline for life’s emergence on Earth. The rocks from the Nuvvuagittuq Supracrustal Belt in Quebec, Canada, are believed to be some of […]
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Origin & Evolution of Life
Cycling Nitrogen in Ancient Oceans
In recent years, scientists have found evidence that a ‘near complete’ biological nitrogen cycle existed in the oceans during the late Archean to early Proterozoic (from 2.5 to 2 billion […]
Posted inBiogeochemical Cycles & Geobiology, Education and Outreach
Environmental Geobiology Faculty Position: Kansas State University
The Department of Geology at Kansas State University invites applications for a full-time tenure-track position in Environmental Geobiology, at the rank of Assistant Professor. Compensation is based on the nine-month […]
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 inAstrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Origin & Evolution of Life
New Evidence Challenges Oldest Signs of Life
Ancient rocks are shedding new light on the timeline for life’s emergence on Earth. The rocks from the Nuvvuagittuq Supracrustal Belt in Quebec, Canada, are believed to be some of […]
Posted inBiogeochemical Cycles & Geobiology, Water/Hycean Worlds & Oceanography
Cycling Nitrogen in Ancient Oceans
In recent years, scientists have found evidence that a ‘near complete’ biological nitrogen cycle existed in the oceans during the late Archean to early Proterozoic (from 2.5 to 2 billion […]