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There are a total of 1035442 record(s) matching your query.
Sorted by: Date Added To NTRS in Ascending order
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Miniature Free-Flying Magnetometer Utilizing System-On-A-Chip Technology
Author(s): Eyre, F. B.; Blaes, B. R.
Abstract: Four Free-Flying Magnetometers (FFMs), developed at the Jet Propulsion Laboratory (JPL) for the Enstrophy mission, were successfully deployed from the payload of a sounding rocket launched from Poker Flats, Alaska on ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 2001
Added to NTRS: 2004-09-16
Document ID: 20010041210
Spinel from Apollo 12 Olivine Mare Basalts: Chemical Systematics of Selected Major, Minor, and Trace Elements
Author(s): Papike, J. J.; Karner, J. M.; Shearer, C. K.; Spilde, M. N.
Abstract: Spinels from Apollo 12 Olivine basalts have been studied by Electron and Ion microprobe techniques. The zoning trends of major, minor and trace elements provide new insights into the conditions under which planetary basalts ...
NASA Center: NASA (non Center Specific)
Publication Year: 2002
Added to NTRS: 2004-09-16
Document ID: 20020045776
Meteoritic Evidence for the Mechanism of Pond Formation on Asteroid Eros
Author(s): Zolensky, M. E.; Cintala, M. J.; Hvrz, F.; Morris, R. V.; Nakamura, K.; Cheng, A. F.; Criswell, D.
Abstract: We propose seismic shaking as the mechanism for pond formation on Eros, based on analysis of clasts in the Vigarano CV chondrite which appear to have formed in this way. Additional information is contained in the original ...
NASA Center: Johnson Space Center
Publication Year: 2002
Added to NTRS: 2004-09-16
Document ID: 20020046124
Magnetic Effects on Bjurbole (L4) Chondrules Moving from Space to Terrestrial Environments
Author(s): Kletetschka, G.; Wasilewski, P. J.; Berdichevsky, M.
Abstract: Meteorites contain magnetic material capable of acquiring a wide range of magnetic remanence records by warming from space temperature and magnetic conditions to 300 K inside the terrestrial environment. Additional ...
NASA Center: Goddard Space Flight Center
Publication Year: 2001
Added to NTRS: 2004-09-16
Document ID: 20010044741
Experimentally Shocked Dolomite - A Raman Spectroscopic Study
Author(s): Skala, R.; Matejka, P.; Hoerz, F.
Abstract: Raman spectroscopic study supports a concept of thermally induced shear bands as the dominant deformation mechanism of shocked carbonates, carbonate outgassing during shock compression and release, and disproves the ...
NASA Center: Johnson Space Center
Publication Year: 2000
Added to NTRS: 2004-09-16
Document ID: 20000080607
Isotopic Constraints on the Origin of Lunar Ferroan Anorthosites
Author(s): Borg, L. E.; Shearer, C. K.; Nyquist, L. E.; Norman, M. D.
Abstract: Ferroan anorthosites have whole rock Nd isotopic compositions that are too radiogenic to have crystallized from a chondritic magma ocean. Mechanisms to disturb the whole rock Sm-Nd isotopic compositions are explored. ...
NASA Center: Johnson Space Center
Publication Year: 2002
Added to NTRS: 2004-09-16
Document ID: 20020045932
Using Mars's Sulfur Cycle to Constrain the Duration and Timing of Fluvial Processes
Author(s): Blaney, D. L.
Abstract: Sulfur exists in high abundances at diverse locations on Mars. This work uses knowledge of the Martian sulfate system to discriminate between leading hypotheses and discusses the implications for duration and timing of ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 2002
Added to NTRS: 2004-09-16
Document ID: 20020046059
Toward Understanding Pore Formation and Mobility during Controlled Directional Solidification in a Microgravity Environment Investigation (PFMI)
Author(s): Grugel, Richard N.; Anilkumar, A. V.; Luz, Paul; Jeter, Linda; Volz, Martin P.; Spivey, Reggie; Smith, G.
Abstract: The generation and inclusion of detrimental porosity, e.g., pipes and rattails can occur during controlled directional solidification processing. The origin of these defects is generally attributed to gas evolution and ...
NASA Center: Marshall Space Flight Center
Publication Year: 2003
Added to NTRS: 2004-09-16
Document ID: 20030060545
Two Mars Years of Clouds Detected by the Mars Orbiter Laser Altimeter
Author(s): Neumann, G. A.; Smith, D. E.; Zuber, M. T.
Abstract: MOLA operated as an atmospheric lidar as well as an altimeter. We present results spanning two Mars years of observations, and some observations concerning cloud waveforms and snow. Additional information is contained in the ...
NASA Center: Goddard Space Flight Center
Publication Year: 2002
Added to NTRS: 2004-09-16
Document ID: 20020046577
Interpreting NEAR XGRS Results for the Class S Asteroid 433 Eros with an Interactive Meteorite Database
Author(s): Clark, P. E.; Murphy, M. E.; Nittler, L. R.
Abstract: The NEAR X-ray spectrometer, based on calculations using an interactive meteorite database, should be able to identify potential meteorite class and subclass analogs on a scale of 2 to 3 kilometers on asteroid 433 Eros.
NASA Center: Goddard Space Flight Center
Publication Year: 2000
Added to NTRS: 2004-09-16
Document ID: 20000080856
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