Christine A Knudson

Christine A Knudson

  • RESEARCH ASSISTANT
  • 301.614.6585
  • NASA/GSFC
  • Mail Code: 699
  • Greenbelt , MD 20771
  • Employer: UNIV OF MARYLAND COLLEGE PARK
  • Brief Bio

    I am a geologist with a background in geochemistry and volcanology working on site in the mineralogy and geochemical laboratories in the Planetary Environments Laboratory group at NASA Goddard Space Flight Center. I work primarily on tasks related to the Sample Analysis at Mars instrument on the Mars Science Laboratory Curiosity Rover and I am involved in field work which in part supports Mars related analog studies.

    Current Projects

    Sample Analysis at Mars (SAM) on the Mars Science Laboratory (MSL) Curiosity Rover

    Positions/Employment

    2/2015 - Present

    Research Assistant

    University of Maryland / CRESST, NASA Goddard Space Flight Center Greenbelt, Maryland
    8/2012 - 5/2014

    Teaching Assistant, Department of Geology and Environmental Geosciences

    Northern Illinois Univeristy, DeKalb, IL

    Education

    • M.S. Geology, 2014, Northern Illinois Univeristy, DeKalb, IL
      • Thesis: Magmatic water content of Pacaya Volcano, Guatemala, determined from a thermodynamic model for the plagioclase – liquid hygrometer
    • B.S. Geology and Environmental Geosciences, 2012, Northern Illinois Univeristy, DeKalb, IL

    Awards

    2017    NASA Group Achievement Award – MSL Extended Mission-1 Science and Operations Team

    Selected Publications

    Refereed

    Ytsma, C. R., C. A. Knudson, M. D. Dyar, et al. A. C. McAdam, D. D. Michaud, and L. M. Rollosson. 2020. "Accuracies and detection limits of major, minor, and trace element quantification in rocks by portable laser-induced breakdown spectroscopy." Spectrochimica Acta Part B: Atomic Spectroscopy, 171: [10.1016/j.sab.2020.105946]

    Freissinet, C., C. A. Knudson, H. V. Graham, et al. J. M. Lewis, J. Lasue, A. C. McAdam, S. Teinturier, C. Szopa, E. Dehouck, R. V. Morris, C. A. Malespin, and P. R. Mahaffy. 2020. "Benzoic Acid as the Preferred Precursor for the Chlorobenzene Detected on Mars: Insights from the Unique Cumberland Analog Investigation." The Planetary Science Journal, 1 (2): 41 [10.3847/psj/aba690]

    Wong, G., J. M. Lewis, C. A. Knudson, et al. M. Millan, A. C. Mcadam, J. L. Eigenbrode, S. Andrejkovičová, F. Gómez, R. Navarro-González, and C. House. 2020. "Detection of reduced sulfur on Vera Rubin ridge by quadratic discriminant analysis of volatiles observed during evolved gas analysis." Journal of Geophysical Research: Planets, 125 (8): e2019JE006304 [Full Text (Link)] [10.1029/2019JE006304]

    Franz, H. B., P. R. Mahaffy, C. R. Webster, et al. G. J. Flesch, E. Raaen, C. Freissinet, S. K. Atreya, C. House, A. C. Mcadam, C. A. Knudson, P. D. Archer, J. C. Stern, A. Steele, B. Sutter, J. L. Eigenbrode, D. P. Glavin, J. M. Lewis, C. A. Malespin, M. Millan, D. W. Ming, R. Navarro-González, and R. E. Summons. 2020. "Indigenous and exogenous organics and surface-atmosphere cycling inferred from carbon and oxygen isotopes at Gale crater." Nature Astronomy, [Full Text (Link)] [10.1038/s41550-019-0990-x]

    Johnson, S. S., M. Millan, H. Graham, et al. K. C. Benison, A. J. Williams, A. McAdam, C. A. Knudson, S. Andrejkovičová, and C. Achilles. 2020. "Lipid Biomarkers in Ephemeral Acid Salt Lake Mudflat/Sandflat Sediments: Implications for Mars." Astrobiology, 20 (2): 167-178 [10.1089/ast.2017.1812]

    Mcadam, A. C., B. Sutter, P. D. Archer, et al. H. B. Franz, G. Wong, J. M. Lewis, J. L. Eigenbrode, J. C. Stern, C. A. Knudson, J. Clark, S. Andrejkovicova, D. Ming, R. Morris, C. N. Achilles, E. Rampe, T. Bristow, R. Navarro-Gonzalez, P. R. Mahaffy, L. Thompson, R. Gellert, A. Williams, C. House, and S. Johnson. 2020. "Constraints on the Mineralogy and Geochemistry of the Vera Rubin ridge, Gale Crater, Mars, from Mars Science Laboratory Sample Analysis at Mars Evolved Gas Analyses." Journal of Geophysical Research: Planets, (Accepted)

    Williams, A. J., J. L. Eigenbrode, M. A. Floyd, et al. M. Wilhelm, S. O’Reilly, S. S. Johnson, K. L. Craft, C. A. Knudson, S. Andrejkovičová, J. M. Lewis, A. Buch, D. P. Glavin, C. Freissinet, R. H. Williams, R. Summons, A. C. Mcadam, K. Benison, R. Navarro-González, C. A. Malespin, and P. Mahaffy. 2019. "Recovery of Fatty Acids from Mineralogic Mars Analogs by TMAH Thermochemolysis for the Sample Analysis at Mars Wet Chemistry Experiment on the Curiosity Rover." Astrobiology, 19 (4): [Full Text (Link)] [10.1089/ast.2018.1819]

    Young, K. E., J. E. Bleacher, A. D. Rogers, et al. H. H. Schmitt, A. C. McAdam, W. B. Garry, P. L. Whelley, S. P. Scheidt, G. Ito, C. A. Knudson, T. G. Graff, L. V. Bleacher, N. Whelley, C. A. Evans, J. M. Hurtado, and T. D. Glotch. 2018. "The Incorporation of Field Portable Instrumentation Into Human Planetary Surface Exploration." Earth and Space Science, 5: 24 [10.1029/2018ea000378]

    Stern, J. C., B. Sutter, P. D. Archer, et al. J. L. Eigenbrode, A. C. Mcadam, H. B. Franz, C. Knudson, D. W. Ming, G. Wong, C. Freissinet, C. A. Malespin, R. Navarro-Gonzalez, C. Szopa, and P. Mahaffy. 2018. "Major Volatiles Evolved From Eolian Materials in Gale Crater." Geophysical Research Letters, [Full Text (Link)] [10.1029/2018gl079059]

    Franz, H. B., A. C. McAdam, D. W. Ming, et al. C. Freissinet, P. R. Mahaffy, D. L. Eldridge, W. W. Fischer, J. P. Grotzinger, C. H. House, J. A. Hurowitz, S. M. McLennan, S. P. Schwenzer, D. T. Vaniman, P. D. Archer Jr, S. K. Atreya, P. G. Conrad, J. W. Dottin III, J. L. Eigenbrode, K. A. Farley, D. P. Glavin, S. S. Johnson, C. A. Knudson, R. V. Morris, R. Navarro-González, A. A. Pavlov, R. Plummer, E. B. Rampe, J. C. Stern, A. Steele, R. E. Summons, and B. Sutter. 2017. "Large sulfur isotope fractionations in Martian sediments at Gale crater." Nature Geoscience, [10.1038/ngeo3002]

    Non-Refereed

    Richardson, J. A., N. L. Whelley, P. L. Whelley, et al. M. Milazzo, C. A. Knudson, R. Romo, and S. Kobs Nawotniak. 2020. "Building Safer and More Inclusive Field Experiences in Support of Planetary Science." 2023–2032 NAS Planetary Science and Astrobiology Decadal Survey

    Selected Public Outreach

    USA Science & Engineering Fest 4 / 2018 - 4 / 2018
    Explore @ NASA Goddard Event 9 / 2015 - 9 / 2015

    Brief Bio

    I am a geologist with a background in geochemistry and volcanology working on site in the mineralogy and geochemical laboratories in the Planetary Environments Laboratory group at NASA Goddard Space Flight Center. I work primarily on tasks related to the Sample Analysis at Mars instrument on the Mars Science Laboratory Curiosity Rover and I am involved in field work which in part supports Mars related analog studies.

    Selected Publications

    Refereed

    Ytsma, C. R., C. A. Knudson, M. D. Dyar, et al. A. C. McAdam, D. D. Michaud, and L. M. Rollosson. 2020. "Accuracies and detection limits of major, minor, and trace element quantification in rocks by portable laser-induced breakdown spectroscopy." Spectrochimica Acta Part B: Atomic Spectroscopy 171 [10.1016/j.sab.2020.105946]

    Freissinet, C., C. A. Knudson, H. V. Graham, et al. J. M. Lewis, J. Lasue, A. C. McAdam, S. Teinturier, C. Szopa, E. Dehouck, R. V. Morris, C. A. Malespin, and P. R. Mahaffy. 2020. "Benzoic Acid as the Preferred Precursor for the Chlorobenzene Detected on Mars: Insights from the Unique Cumberland Analog Investigation." The Planetary Science Journal 1 (2): 41 [10.3847/psj/aba690]

    Wong, G., J. M. Lewis, C. A. Knudson, et al. M. Millan, A. C. Mcadam, J. L. Eigenbrode, S. Andrejkovičová, F. Gómez, R. Navarro-González, and C. House. 2020. "Detection of reduced sulfur on Vera Rubin ridge by quadratic discriminant analysis of volatiles observed during evolved gas analysis." Journal of Geophysical Research: Planets 125 (8): e2019JE006304 [Full Text (Link)] [10.1029/2019JE006304]

    Franz, H. B., P. R. Mahaffy, C. R. Webster, et al. G. J. Flesch, E. Raaen, C. Freissinet, S. K. Atreya, C. House, A. C. Mcadam, C. A. Knudson, P. D. Archer, J. C. Stern, A. Steele, B. Sutter, J. L. Eigenbrode, D. P. Glavin, J. M. Lewis, C. A. Malespin, M. Millan, D. W. Ming, R. Navarro-González, and R. E. Summons. 2020. "Indigenous and exogenous organics and surface-atmosphere cycling inferred from carbon and oxygen isotopes at Gale crater." Nature Astronomy [Full Text (Link)] [10.1038/s41550-019-0990-x]

    Johnson, S. S., M. Millan, H. Graham, et al. K. C. Benison, A. J. Williams, A. McAdam, C. A. Knudson, S. Andrejkovičová, and C. Achilles. 2020. "Lipid Biomarkers in Ephemeral Acid Salt Lake Mudflat/Sandflat Sediments: Implications for Mars." Astrobiology 20 (2): 167-178 [10.1089/ast.2017.1812]

    Mcadam, A. C., B. Sutter, P. D. Archer, et al. H. B. Franz, G. Wong, J. M. Lewis, J. L. Eigenbrode, J. C. Stern, C. A. Knudson, J. Clark, S. Andrejkovicova, D. Ming, R. Morris, C. N. Achilles, E. Rampe, T. Bristow, R. Navarro-Gonzalez, P. R. Mahaffy, L. Thompson, R. Gellert, A. Williams, C. House, and S. Johnson. 2020. "Constraints on the Mineralogy and Geochemistry of the Vera Rubin ridge, Gale Crater, Mars, from Mars Science Laboratory Sample Analysis at Mars Evolved Gas Analyses." Journal of Geophysical Research: Planets (Accepted)

    Williams, A. J., J. L. Eigenbrode, M. A. Floyd, et al. M. Wilhelm, S. O’Reilly, S. S. Johnson, K. L. Craft, C. A. Knudson, S. Andrejkovičová, J. M. Lewis, A. Buch, D. P. Glavin, C. Freissinet, R. H. Williams, R. Summons, A. C. Mcadam, K. Benison, R. Navarro-González, C. A. Malespin, and P. Mahaffy. 2019. "Recovery of Fatty Acids from Mineralogic Mars Analogs by TMAH Thermochemolysis for the Sample Analysis at Mars Wet Chemistry Experiment on the Curiosity Rover." Astrobiology 19 (4): [Full Text (Link)] [10.1089/ast.2018.1819]

    Young, K. E., J. E. Bleacher, A. D. Rogers, et al. H. H. Schmitt, A. C. McAdam, W. B. Garry, P. L. Whelley, S. P. Scheidt, G. Ito, C. A. Knudson, T. G. Graff, L. V. Bleacher, N. Whelley, C. A. Evans, J. M. Hurtado, and T. D. Glotch. 2018. "The Incorporation of Field Portable Instrumentation Into Human Planetary Surface Exploration." Earth and Space Science 5 24 [10.1029/2018ea000378]

    Stern, J. C., B. Sutter, P. D. Archer, et al. J. L. Eigenbrode, A. C. Mcadam, H. B. Franz, C. Knudson, D. W. Ming, G. Wong, C. Freissinet, C. A. Malespin, R. Navarro-Gonzalez, C. Szopa, and P. Mahaffy. 2018. "Major Volatiles Evolved From Eolian Materials in Gale Crater." Geophysical Research Letters [Full Text (Link)] [10.1029/2018gl079059]

    Franz, H. B., A. C. McAdam, D. W. Ming, et al. C. Freissinet, P. R. Mahaffy, D. L. Eldridge, W. W. Fischer, J. P. Grotzinger, C. H. House, J. A. Hurowitz, S. M. McLennan, S. P. Schwenzer, D. T. Vaniman, P. D. Archer Jr, S. K. Atreya, P. G. Conrad, J. W. Dottin III, J. L. Eigenbrode, K. A. Farley, D. P. Glavin, S. S. Johnson, C. A. Knudson, R. V. Morris, R. Navarro-González, A. A. Pavlov, R. Plummer, E. B. Rampe, J. C. Stern, A. Steele, R. E. Summons, and B. Sutter. 2017. "Large sulfur isotope fractionations in Martian sediments at Gale crater." Nature Geoscience [10.1038/ngeo3002]

    Non-Refereed

    Richardson, J. A., N. L. Whelley, P. L. Whelley, et al. M. Milazzo, C. A. Knudson, R. Romo, and S. Kobs Nawotniak. 2020. "Building Safer and More Inclusive Field Experiences in Support of Planetary Science." 2023–2032 NAS Planetary Science and Astrobiology Decadal Survey

                                                                                                                                                                                            
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