Grant For Research 80NSSC19K0475
- Not listed
- This is a $358,750.01 grant awarded by the National Aeronautics and Space Administration (NASA) to Arizona State University for research on the chemical mechanism responsible for the mass-independent fractionation of sulfur isotopes seen in Archean sedimentary rocks. The research will involve measuring high-resolution photoexcitation cross sections, dissociation probabilities, and rates of collisional and radiative deactivation of excited-state sulfur species. The results will be incorporated...
- Arizona State University was awarded a $374,620.96 grant from the National Aeronautics and Space Administration (NASA) to conduct research related to oxygen isotope fractionation and self-shielding in the solar nebula. The research aims to improve understanding of how carbon monoxide (CO) self-shielding can explain enrichment of oxygen-17 and oxygen-18 in terrestrial planets and meteorites compared to the solar photosphere. The grant involves analyzing high-quality ultraviolet absorption...
- This $704,133 NASA grant was awarded to Arizona State University (ASU) to conduct research related to the global redox state of the mid-Proterozoic oceans and its relationship to the evolution of early eukaryotes. The research aims to refine the use of uranium isotopes as a proxy to better constrain oxygen levels during this critical period in Earth's history. The work involves experimental studies, analysis of modern analogue environments, and integration with ASU's existing dataset on...
- This is a $114,846.10 training grant awarded by the National Aeronautics and Space Administration (NASA) Shared Services Center to Arizona State University (ASU) to study the role of oxidative weathering in the Great Oxidation Event, a key event in the oxygenation of Earth's atmosphere. The grant supports experiments to measure the kinetics of oxygen consumption by various rock types at low oxygen levels relevant to the Archean eon, prior to the oxygenation of the atmosphere. The goal is to...
- This is a $852,867 research grant awarded by the National Aeronautics and Space Administration (NASA) to Arizona State University (ASU) to study the geochemical and biomolecular changes associated with the evolution of photosynthesis. The research aims to understand how geochemical changes may have enabled the historical rise of photosynthesis by examining transitions to photosynthesis in active hot spring ecosystems. The project will combine field research, laboratory analysis, and...
- The National Aeronautics and Space Administration (NASA) awarded a $122,554.49 training grant to Arizona State University (ASU) to investigate the behavior of iron (Fe) and silicon (Si) isotopes during planetary accretion and differentiation. The study aims to determine if variable redox conditions during these processes are responsible for the mass-dependent Fe and Si isotope fractionation observed in planetary materials. The work will utilize analytical techniques including electron microprobe...
- This is a $1,953,008 grant awarded by the National Aeronautics and Space Administration (NASA) to Arizona State University (ASU) to conduct research on the early history of the solar system. The objective is to better understand processes in the solar nebula and on planetesimals through investigations of radiogenic isotope systematics, stable isotope systematics, and trace element geochemistry of primitive and differentiated meteorites. The research addresses NASA's Emerging Worlds program goals...
- This is a $858,990.51 grant awarded by the National Aeronautics and Space Administration (NASA) to Portland State University (PSU) for research on the biological sulfur metabolism of methanogens, ancient microorganisms that emerged on the anaerobic Earth over 2 billion years ago. The grant, titled "DESCRIPTION OF KEY CENTRAL OBJECTIVES SULFUR ASSIMILATION AND TRAFFICKING IN METHANOGENS EXHIBIT UNIQUE FEATURES AS COMPARED WITH ALL OTHER EXTANT ORGANISMS, REFLECTING THE EMERGENCE OF THESE...
- This is a $657,088 grant awarded by NASA to Arizona State University (ASU) to conduct research on the evolution of photosynthesis and its implications for exobiology. The grant, titled "MOTIVATION: A CHALLENGE FOR EXOBIOLOGY IS TO EXPLAIN THE EVOLUTION OF PHOTOSYNTHESIS", aims to investigate the potential for a chemolithotroph with a photosynthetic reaction center to extract energy from environmental redox gradients. The research will involve genetically engineering the primitive...
- This is a $106,000 grant award from the National Aeronautics and Space Administration (NASA) Shared Services Center to Arizona State University (ASU) for research related to the analysis of oxygen isotopes from samples returned from the Long Duration Exposure Facility (LDEF) mission. The research involves using ion microprobe measurements to analyze oxygen isotope ratios (D17O and D18O) in aluminum targets from different LDEF experiments. It also includes modeling the implantation of oxygen ions...
This federal contract award to Arizona State University (ASU) is for a research grant from the National Aeronautics and Space Administration (NASA) to study the chemical or photochemical mechanisms behind sulfur isotope mass-independent fractionation (S-MIF) signatures in the ancient Earth's atmosphere. The $554,738 grant will fund experiments to analyze the photochemical fractionation of other small sulfur molecules, such as SO, S, S2, and S4, that may have contributed to the S-MIF signatures found in Archean rocks, which provide insights into the rise of oxygen in the atmosphere approximately 2.4 billion years ago. The research will involve measuring absorption cross sections and reaction products for the isotopologues of these sulfur species using a synchrotron facility in France. This award does not have a set-aside designation.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| P00003 | Other Administrative Action | $0 | 2/23/22 | |
| Not listed | $0 | 2/23/22 | ||
| P00002 | Funding Only Action | $178.7k | 4/20/21 | |
| Not listed | $178.7k | 4/20/21 | ||
| Not listed | $171.7k | 10/28/20 |