Grant For Research NNX09AP62A
- Not listed
- The Planetary Science Institute, a non-profit research organization based in Tucson, Arizona, was awarded a $229,427 research grant by a civilian federal agency on February 8, 2022, with an ultimate completion date of February 7, 2027. This grant supports a scientific research initiative focused on detecting geological changes on Enceladus, Saturn's small ice-covered moon, by comparing high-resolution imagery from the Voyager spacecraft missions (1980-1981) with data collected by NASA's...
- This federal grant award to the University of Texas at Austin is funded by the National Aeronautics and Space Administration (NASA) to conduct research on the internal activity and tectonic processes of several icy satellites in the solar system, including Enceladus and Europa. The primary objective is to use modeling software to investigate how processes within the ice shells of these moons are linked to their surface features. The research will be conducted under a $147,105.00 grant with a...
- The University of Washington's Office of Sponsored Programs was awarded a $677,073 research grant by a civilian federal agency (Shared Services Center) on December 20, 2018, with completion targeted for December 19, 2026. This non-set-aside grant supports a multi-task research initiative focused on understanding the subsurface ocean composition of Saturn's moon Enceladus. The work addresses a critical knowledge gap between proposed instrument suites and science return for future missions such as...
- The National Aeronautics and Space Administration (NASA) Shared Services Center awarded a $161,315.00 grant to the Planetary Science Institute, a non-profit research organization, to conduct research on the geological and geophysical processes that drive material transport between the subsurface oceans and surfaces of icy moons such as Europa and Enceladus. The research aims to understand the habitability of these oceans and the potential for detecting biosignatures on the surface, which is...
- The Regents of the University of Colorado has been awarded a $452,534 grant by a civilian federal agency (Shared Services Center) to conduct research examining in situ plume measurements from the Cassini spacecraft's instruments during flybys of Enceladus, Saturn's icy moon. The research leverages data from the Cassini Plasma Spectrometer (CAPS), Cosmic Dust Analyser (CDA), and Langmuir Probe to characterize plasma generated by intense dust impacts within Enceladus's water plume. By...
- Planetary Science Institute, a nonprofit research organization headquartered in Tucson, Arizona, received a $450,830 research grant from NASA's Shared Services Center, awarded on January 10, 2022, with a completion date of January 9, 2027. This competitively awarded grant carries no set-aside designation and funds a research project investigating the effects of exogenic processes on the surfaces of Saturn's inner large icy satellites—specifically Mimas, Tethys, Enceladus, Dione, and Rhea. The...
- This federal contract award was issued by the National Aeronautics and Space Administration (NASA) to the Space Science Institute (SSI), a nonprofit research organization based in Boulder, Colorado. The $191,763 grant is for a study to analyze data from the Cassini spacecraft's Composite Infrared Spectrometer (CIRS) to investigate heat transfer processes and water vapor flows associated with fractures in the ice shell of Saturn's moon Enceladus. The study aims to advance the understanding of the...
- This is a grant awarded by the National Aeronautics and Space Administration (NASA) to Cornell University to study the geological features and processes on the surface of Enceladus, one of Saturn's moons. The goal is to understand how cryovolcanism, tectonism, seismicity, mass wasting, impacts, and thermophysical processes have shaped the small-scale surface features on Enceladus, using high-resolution imagery from the Cassini spacecraft. The work also aims to demonstrate the use of...
- This is a $149,083 grant awarded by a civilian federal agency, the Shared Services Center, to the University of Oregon for a research project titled "Multiphase Modeling of Transient Cryovolcanic Eruptions as Insight to Subsurface Processes at Enceladus." The grant supports a student researcher, Paul Regensburger, to conduct research on the subsurface liquid water oceans of Enceladus, a moon of Saturn, with a focus on cryovolcanic eruptions. The research aims to provide insights into...
- This is a federal grant awarded by the National Aeronautics and Space Administration (NASA) to Brown University to conduct research on the attenuation and flow/relaxation of ice-I and its effect on the thermomechanical evolution of icy satellites. The research aims to improve understanding of the energy budget and geological activity of icy moons like Europa, which recent observations have shown to be more active than previously expected. The $359,869.77 grant does not have a set-aside...
SUMMARY: DATA RETURNED BY THE CASSINI SPACECRAFT SHOW THAT THE SATELLITES RHEA, DIONE, ENCELADUS, AND MIMAS DISPLAY DIFFERENT LEVELS OF SURFACE MODIFICATION AND ENDOGENIC ACTIVITY. HOWEVER, EXPLAINING THIS DIVERSITY HAS NOT BEEN STRAIGHTFORWARD. THE REASONS FOR THE EVOLUTIONARY DIFFERENCES BETWEEN THESE SATELLITES REMAIN UNCLEAR DUE TO UNCERTAINTIES IN THE CONTRIBUTION OF INTERNAL HEAT SOURCES AND COOLING MECHANISMS. MEASUREMENTS MADE BY GALILEO SUGGEST A SUBSURFACE OCEAN ON EUROPA. CONSEQUENTLY, IT HAS BEEN SUGGESTED THAT HYDROTHERMAL PLUMES CONTRIBUTE TO THE FORMATION OF CHAOTIC TERRAIN BY TRANSPORTING HEAT FROM THE MANTLE TO THE ICE SHELL. HOWEVER, THE ICE SHELL THICKNESS AND HEAT DELIVERED ARE STILL DEBATED TOPICS. DETERMINING THE INTERIOR STRUCTURE OF EACH SATELLITE AND THE PROCESSES THAT MODIFIED IT REQUIRES EXPLORING THE RELATIONSHIP BETWEEN WATER-ROCK REACTIONS, AND DIFFERENT HEATING AND COOLING MECHANISMS. A COMBINATION OF FACTORS CONTROLS THE EVOLUTIONARY PATH OF EACH OF THESE ICY SATELLITES. FOR EXAMPLE, INITIAL 26AL AND 60FE ABUNDANCES, THE TIME AT WHICH BODIES ACCRETED, THE TEMPERATURE OF THE MATERIAL FROM WHICH THEY EVOLVED, HEAT LIBERATED FROM CHEMICAL REACTIONS, AND WHETHER HEAT IS REMOVED BY SOLID-STATE CONVECTION OR CONDUCTION ALL IMPACT THE THERMAL EVOLUTION. FURTHERMORE, IN ADDITION TO SUPPLYING HEAT, WATER-ROCK REACTIONS MODIFY OXIDATION STATES, MINERALOGIES, AND ICE/FLUID COMPOSITIONS. WE PROPOSE A COMPREHENSIVE STUDY THAT INCLUDES VARIOUS HEATING AND COOLING MECHANISMS AND KINETIC REACTIONS TO OBTAIN A GLOBAL UNDERSTANDING OF THE INTERIOR AND SURFACE EVOLUTION OF THESE SATELLITES. THE COMPUTER CODE MAGHNUM WILL BE USED TO MODEL THERMAL DIFFUSION, ICE TO WATER PHASE CHANGE, DIFFERENTIATION, RADIOGENIC AND TIDAL HEATING, CONVECTION IN POROUS ROCK OR IN ICE, AND PARAMETERIZED ADVECTION (IN A SUBSURFACE OCEAN). WATER-ROCK REACTIONS CAN BE INCLUDED USING THE REACTION PACKAGE PHREEQC. THIS WORK PROVIDES A SET OF THOROUGH THERMAL AND CHEMICAL EVOLUTION SIMULATIONS THAT AID THE INTERPRETATION OF CASSINI AND GALILEO DATA.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $0 | 11/22/10 | ||
| 2 | Other Administrative Action | $0 | 11/22/10 | |
| Not listed | $0 | 7/13/10 | ||
| 1 | Other Administrative Action | $0 | 7/13/10 | |
| Not listed | $150.0k | 8/26/09 |