Charles A Malespin

Charles A Malespin

  • Chief , Planetary Environments Laboratory
  • Additional Roles: RESEARCH SCIENTIST, Deputy Principal Investigator for Sample Analysis at Mars
  • 301.614.6042
  • NASA/GSFC
  • Mail Code: 699
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Charles Malespin is the Chief of the Planetary Environments Lab (Code 699), and serves as the Deputy Principal Investigator for the Sample Analysis at Mars (SAM) instrument suite currently on the Curiosity rover in Gale Crater, Mars. He also serves as PI for CADMES (a Europa Lander sample delivery system), is the SAM operations lead, and is responsible for directing the SAM testbed program, including defining, prioritizing, and organizing all experiments prior to the sequence execution on Mars by the SAM instrument.

    Malespin additionaly is a payload element lead for the mass spectrometer on the New Frontiers Dragonfly mission, and is the Venus Mass Spectrometer (VMS) lead for the Discovery Phase A DAVINCI+ mission.

     

     

    Current Projects

    Sample Analysis at Mars (SAM) Deputy Principal Investigator

    Malespin leads a team using an interdisciplinary treatment of SAM data, both science and engineering telemetry, to produce expert interpretation of surface mission science products. He is an expert in understanding the SAM instrument and led the development, testing, and interpretation of several major experiments that have made some key discoveries for MSL/SAM, such as the first in situ geochronology experiment on another planet, the enrichment of atmospheric methane, and measurements of the trace heavy noble gases krypton and xenon in the Martian atmosphere.

    Principal Investigator for Instrument Concepts for Europa Exploration (ICEE) sample handling system, CADMES

    Malespin is the PI for the Collaborative Acceptance and Distribution for Measuring Europan Samples (CADMES) sampling system. The CADMES system serves as a common sample delivery system for a future Europa lander, designed to simplify interface and sampling requirements on both the lander and payload. 

    Dragonfly Mass Spectrometer (DraMS) Gas Processing System Lead

    Malespin is the GPS lead for the DraMS instrument on the Dragonfly mission to Titan.

    DAVINCI+ Venus Mass Spectrometer Lead

    Malespin serves as the VMS lead for the DAVINCI+ Phase A Discovery mission to Venus.

    Sample Analysis at Mars (SAM) Testbed and Operations Lead

    The SAM testbed is a duplicate of the instrument currently operating on the Mars Science Lab (MSL) rover Curiosity in Gale Crater, Mars. It is run inside a Mars chamber at GSFC which replicates the thermal and atmospheric conditions found on Mars. Charles leads the development, testing, and validation of experimental procedures using SAM testbed before use on Mars. 

    Malespin is also the operations lead for the SAM instrument suite.

    Co-I for DALI Lunar mass spectrometer instrument development, LEMS

    Co-I for lunar commercial payload, SEAL

    Awards

    2017 NASA Agency Honor Award - Early Career Public Achievement Medal

    2014 NASA Group Achievement award to MSL and SAM development and Science Team

    2013 NASA GSFC Solar System Exploration Division dedication and service award
     

     

     

    Research Interests

    Instrument development

    Mass spectrometry

    Mars

    Professional Service

    External reviewer and panel member for several NASA grant programs

     

    Selected Publications

    Refereed

    Szopa, C., C. Freissinet, D. Glavin, et al. M. Millan, A. Buch, H. Franz, R. E. Summons, D. Sumner, B. Sutter, J. Eigenbrode, R. Williams, R. Navarro-Gonzales, M. Guzman, C. Malespin, S. Teinturier, P. Mahaffy, and M. Cabane. 2020. "First detections of dichlorobenzene isomers and trichloromethylpropane from organic matter indigenous to Mars mudstone in Gale Crater, Mars: Results from the Sample Analysis at Mars instrument onboard the Curiosity Rover." Astrobiology, 20 (2): [Full Text (Link)] [10.1089/ast.2018.1908]

    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]

    Trainer, M. G., M. H. Wong, T. H. McConnochie, et al. H. B. Franz, S. K. Atreya, P. G. Conrad, F. Lefèvre, P. R. Mahaffy, C. A. Malespin, H. L. Manning, J. Martín‐Torres, G. M. Martínez, C. P. McKay, R. Navarro‐González, Á. Vicente‐Retortillo, C. R. Webster, and M. Zorzano. 2019. "Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars." Journal of Geophysical Research: Planets, 124 (11): 3000-3024 [10.1029/2019je006175]

    Buch, A., I. Belmahdi, C. Szopa, et al. C. Freissinet, D. Glavin, M. Millan, R. Summons, D. Coscia, S. Teinturier, J. Bonnet, Y. He, M. Cabane, R. Navarro‐Gonzalez, C. Malespin, J. Stern, J. Eigenbrode, P. Mahaffy, and S. Johnson. 2019. "Role of the Tenax® adsorbent in the interpretation of the EGA and GC‐MS analyses performed with the Sample Analysis at Mars in Gale crater." Journal of Geophysical Research: Planets, 2019JE005973 [10.1029/2019je005973]

    Cohen, B. A., C. A. Malespin, K. A. Farley, et al. P. E. Martin, Y. Cho, and P. R. Mahaffy. 2019. "In Situ Geochronology on Mars and the Development of Future Instrumentation." Astrobiology, ast.2018.1871 [10.1089/ast.2018.1871]

    He, Y., A. Buch, M. Morrison, et al. C. Szopa, C. Freissinet, A. J. Williams, M. Millan, M. Guzman, R. Navarro-Gonzalez, J. Y. Bonnet, D. Coscia, J. L. Eigenbrode, C. A. Malespin, P. R. Mahaffy, D. P. Glavin, J. P. Dworkin, P. Lu, and S. S. Johnson. 2019. "Application of TMAH thermochemolysis to the detection of nucleobases: application to the MOMA and SAM space experiment." Talanta, 204: 802-811 [Full Text (Link)] [10.1016/j.talanta.2019.06.076]

    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]

    Navarro Gonzalez, R., K. Navarro, P. Coll, et al. C. McKay, J. C. Stern, B. Sutter, P. D. Archer, A. Buch, M. Cabane, P. G. Conrad, J. L. Eigenbrode, H. B. Franz, C. Freissinet, D. P. Glavin, J. Hogancamp, A. C. Mcadam, C. A. Malespin, J. Martín-Torres, D. Ming, R. Morris, B. D. Prats, F. Raulin, J. Rodríguez-Manfredi, C. Szopa, M.-P. Zorzano-Mier, P. Mahaffy, S. Atreya, M. G. Trainer, and A. Vasavada. 2018. "Abiotic input of fixed nitrogen by bolide impacts to Gale crater during the Hesperian. Insights from the Mars Science Laboratory." Journal of Geophysical Research-Planets, [Full Text (Link)] [10.1029/2018JE005852]

    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]

    Eigenbrode, J. L., R. E. Summons, A. Steele, et al. C. Freissinet, M. Millan, R. Navarro-González, B. Sutter, A. C. Mcadam, H. B. Franz, D. P. Glavin, P. D. Archer, P. Mahaffy, P. G. Conrad, J. A. Hurowitz, J. P. Grotzinger, S. Gupta, D. W. Ming, D. Y. Sumner, C. Szopa, C. Malespin, A. Buch, and P. Coll. 2018. "Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars." Science, 360 (6393): 1096-1101 [Full Text (Link)] [10.1126/science.aas9185]

    Webster, C. R., P. Mahaffy, S. K. Atreya, et al. J. E. Moores, G. J. Flesch, C. Malespin, C. P. McKay, G. Martinez, C. L. Smith, J. Martin-Torres, J. Gomez-Elvira, M.-P. Zorzano, M. H. Wong, M. G. Trainer, A. Steele, D. Archer, B. Sutter, P. J. Coll, C. Freissinet, P.-Y. Meslin, R. V. Gough, C. H. House, A. A. Pavlov, J. L. Eigenbrode, D. P. Glavin, J. C. Pearson, D. Keymeulen, L. E. Christensen, S. P. Schwenzer, R. Navarro-Gonzalez, J. Pla-García, S. C. Rafkin, Á. Vicente-Retortillo, H. Kahanpää, D. Viudez-Moreiras, M. D. Smith, A.-M. Harri, M. Genzer, D. M. Hassler, M. Lemmon, J. Crisp, S. P. Sander, R. W. Zurek, and A. R. Vasavada. 2018. "Background levels of methane in Mars’ atmosphere show strong seasonal variations." Science, 360 (6393): 1093-1096 [10.1126/science.aaq0131]

    Martin, P. E., K. A. Farley, M. B. Baker, et al. C. A. Malespin, S. P. Schwenzer, B. A. Cohen, P. R. Mahaffy, A. C. McAdam, D. W. Ming, P. M. Vasconcelos, and R. Navarro-González. 2017. "A Two-Step K-Ar Experiment on Mars: Dating the Diagenetic Formation of Jarosite from Amazonian Groundwaters." Journal of Geophysical Research: Planets, [10.1002/2017je005445]

    Sutter, B., A. C. McAdam, P. R. Mahaffy, et al. D. W. Ming, K. S. Edgett, E. B. Rampe, J. L. Eigenbrode, H. B. Franz, C. Freissinet, J. P. Grotzinger, A. Steele, C. H. House, P. D. Archer, C. A. Malespin, R. Navarro-González, J. C. Stern, J. F. Bell, F. J. Calef, R. Gellert, D. P. Glavin, L. M. Thompson, and A. S. Yen. 2017. "Evolved Gas Analyses of Sedimentary Rocks and Eolian Sediment in Gale Crater, Mars: Results of the Curiosity Rover's Sample Analysis at Mars (SAM) Instrument from Yellowknife Bay to the Namib Dune." Journal of Geophysical Research: Planets, 122: [10.1002/2016je005225]

    Franz, H. B., M. G. Trainer, C. A. Malespin, et al. P. R. Mahaffy, S. K. Atreya, R. H. Becker, M. Benna, P. G. Conrad, J. L. Eigenbrode, C. Freissinet, H. L. Manning, B. D. Prats, E. Raaen, and M. H. Wong. 2017. "Initial SAM Calibration Gas Experiments on Mars: Quadrupole Mass Spectrometer Results and Implications." Planetary and Space Science, [10.1016/j.pss.2017.01.014]

    Vasconcelos, P. M., K. A. Farley, C. A. Malespin, et al. P. Mahaffy, D. Ming, S. M. McLennan, J. A. Hurowitz, and M. S. Rice. 2016. "Discordant K-Ar and Young Exposure Dates for the Windjana sandstone, Kimberley, Gale Crater, Mars." Journal of Geophysical Research: Planets, 121 (10): 2176-2192 [10.1002/2016je005017]

    Conrad, P., C. Malespin, H. Franz, et al. R. Pepin, M. Trainer, S. Schwenzer, S. Atreya, C. Freissinet, J. Jones, H. Manning, T. Owen, A. Pavlov, R. Wiens, M. Wong, and P. Mahaffy. 2016. "In situ measurement of atmospheric krypton and xenon on Mars with Mars Science Laboratory." Earth and Planetary Science Letters, 454: 1-9 [10.1016/j.epsl.2016.08.028]

    Farley, K., P. Martin, P. Archer, et al. S. Atreya, P. Conrad, J. Eigenbrode, A. Fairén, H. Franz, C. Freissinet, D. Glavin, P. Mahaffy, C. Malespin, D. Ming, R. Navarro-Gonzalez, and B. Sutter. 2016. "Light and variable 37Cl/35Cl ratios in rocks from Gale Crater, Mars: Possible signature of perchlorate." Earth and Planetary Science Letters, 438: 14-24 [10.1016/j.epsl.2015.12.013]

    Freissinet, C., D. P. Glavin, P. R. Mahaffy, et al. P. R. Miller, J. L. Eigenbrode, R. E. Summons, A. E. Brunner, A. Buch, C. Szopa, P. D. Archer, H. B. Franz, S. K. Atreya, W. B. Brinckerhoff, M. Cabane, P. Coll, P. C. Conrad, D. J. Des Marais, J. P. Dworkin, A. G. Fairén, P. François, J. P. Grotzinger, S. Kashyap, I. L. Kate, L. A. Leshin, C. A. Malespin, M. G. Martin, F. J. Martin-Torres, A. C. McAdam, D. W. Ming, R. Navarro-González, A. A. Pavlov, B. D. Prats, S. W. Squyres, A. Steele, J. C. Stern, D. Y. Sumner, B. Sutter, and M. P. Zorzano. 2015. "Organic molecules in the Sheepbed Mudstone, Gale Crater, Mars." Journal of Geophysical Research: Planets, 120 (3): 495-514 [Full Text (Link)] [10.1002/2014JE004737 ]

    Mahaffy, P. R., C. R. Webster, J. C. Stern, et al. A. E. Brunner, S. K. Atreya, P. G. Conrad, S. Domagal-Goldman, J. L. Eigenbrode, G. J. Flesch, L. E. Christensen, H. B. Franz, C. Freissinet, D. P. Glavin, J. P. Grotzinger, J. H. Jones, L. A. Leshin, C. Malespin, A. C. McAdam, D. W. Ming, R. Navarro-Gonzalez, P. B. Niles, T. Owen, A. A. Pavlov, A. Steele, M. G. Trainer, K. H. Williford, and J. J. Wray. 2015. "The imprint of atmospheric evolution in the D/H of Hesperian clay minerals on Mars." Science, Vol 347: 412-414 [[DOI:10.1126/science.1260291]]

    Franz, H. B., M. G. Trainer, M. H. Wong, et al. H. Manning, J. C. Stern, P. R. Mahaffy, S. K. Atreya, M. Bennaa, P. G. Conrad, D. N. Harpold, L. A. Leshin, C. A. Malespin, C. P. McKay, J. T. Nolan, and E. Raaen. 2014. "Analytical Techniques for Retrieval of Atmospheric Composition with the Quadrupole Mass Spectrometer of the Sample Analysis at Mars Instrument Suite on Mars Science Laboratory." Planet. Space Sci., [10.1016/j.pss.2014.03.005]

    R Webster, C., P. R. Mahaffy, S. K. Atreya, et al. G. J. Flesch, M. A. Mischna, P. Meslin, K. A. Farley, C. A. Malespin, and P. G. Conrad. 2014. "Mars methane detection and variability at Gale crater." Science, Vol 347: 6220 [[doi:10.1126/science.1261713]]

    Farley, K., C. A. Malespin, P. Mahaffy, and J. Grotzinger. 2014. "In Situ Radiometric and Exposure Age Dating of the Martian Surface." Science, Vol: 343. No. 6169 [10.1126/science.1247166 ]

    Getty, S. A., J. P. Dworkin, D. P. Glavin, et al. M. Martin, Y. Zheng, M. Balvin, A. E. Southard, S. Feng, J. Ferrance, C. Kotecki, C. Malespin, and P. R. Mahaffy. 2013. "Organics Analyzer for Sampling Icy Surfaces: a Liquid Chromatograph-Mass Spectrometer for Future in situ Small Body Missions." 2013 IEEE Aerospace Conference, [Full Text (Link)] [10.1109/AERO.2013.6497391]

    Wong, M. H., S. K. Atreya, P. N. Mahaffy, et al. H. B. Franz, C. Malespin, M. G. Trainer, J. C. Stern, P. G. Conrad, H. Manning, R. O. Pepin, R. H. Becker, C. P. McKay, T. C. Owen, R. Navarro-Gonzaalez, J. H. Jones, B. M. Jakosky, and A. Steele. 2013. "Isotopes of Nitrogen on Mars: Atmospheric Measurements by Curiosity's Mass Spectrometer." Geophys. Res. Lett., 40: 6033-6037 [10.1002/2013GL057840]

    Atreya, S. K., M. G. Trainer, H. B. Franz, et al. M. H. Wong, H. Manning, C. A. Malespin, P. R. Mahaffy, P. G. Conrad, A. E. Brunner, L. A. Leshin, J. H. Jones, C. R. Webster, T. C. Owen, R. O. Pepin, and R. Navarro-Gonzalez. 2013. "Primordial Argon Isotope Fractionation in the Atmosphere of Mars Measured by the SAM Instrument on Curiosity and Implications for Atmospheric Loss." Geophys. Res. Lett., 40: 5605-5609.

    Getty, S. A., J. P. Dworkin, D. P. Glavin, et al. M. G. Martin, Y. Zheng, M. A. Balvin, A. E. Southard, S. H. Feng, C. A. Kotecki, C. A. Malespin, and P. R. Mahaffy. 2013. "Organics Analyzer for Sampling Icy Surfaces: a Liquid Chromatograph-Mass Spectrometer for Future in situ Small Body Missions." IEEE Aerospace Conference Proceedings,

    Mahaffy, P. R., C. R. Webster, M. Cabane, et al. P. G. Conrad, P. Coll, S. K. Atreya, R. Arvey, M. Barciniak, M. Benna, L. Bleacher, W. B. Brinckerhoff, J. L. Eigenbrode, D. Carignan, M. Cascia, R. A. Chalmers, J. P. Dworkin, T. Errigo, P. Everson, H. Franz, R. Farley, S. Feng, G. Frazier, C. Freissinet, D. P. Glavin, D. N. Harpold, D. Hawk, V. Holmes, C. S. Johnson, A. Jones, P. Jordan, J. Kellogg, J. Lewis, E. Lyness, C. A. Malespin, D. K. Martin, J. Maurer, A. C. McAdam, D. McLennan, T. J. Nolan, M. Noriega, A. A. Pavlov, B. Prats, E. Raaen, O. Sheinman, D. Sheppard, J. Smith, J. C. Stern, F. Tan, M. Trainer, D. W. Ming, R. V. Morris, J. Jones, C. Gundersen, A. Steele, J. Wray, O. Botta, L. A. Leshin, T. Owen, S. Battel, B. M. Jakosky, H. Manning, S. Squyres, R. Navarro-González, C. P. McKay, F. Raulin, R. Sternberg, A. Buch, P. Sorensen, R. Kline-Schoder, D. Coscia, C. Szopa, S. Teinturier, C. Baffes, J. Feldman, G. Flesch, S. Forouhar, R. Garcia, D. Keymeulen, S. Woodward, B. P. Block, K. Arnett, R. Miller, C. Edmonson, S. Gorevan, and E. Mumm. 2012. "The Sample Analysis at Mars Investigation and Instrument Suite." Space Sci Rev, 170 (1-4): 401-478 [10.1007/s11214-012-9879-z]

    Glavin, D. P., C. A. Malespin, I. Ten kate, et al. S. A. Getty, V. E. Holmes, E. Mumm, H. B. Franz, M. G. Noreiga, N. J. Dobson, A. E. Southard, S. H. Feng, C. A. Kotecki, J. P. Dworkin, T. Swindle, J. E. Bleacher, J. W. Rice, and P. R. Mahaffy. 2012. "Volatile Analysis by Pyrolysis of Regolith for Planetary Resource Exploration." IEEE Aerospace Conference Proceedings, 1-11, 3-10 [Full Text (Link)] [10.1109/AERO.2012.6187065]

    tenKate, I. L., E. H. Cardiff, J. P. Dworkin, et al. S. H. Feng, V. Holmes, C. Malespin, J. G. Stern, T. D. Swindle, and D. P. Glavin. 2010. "VAPoR – Volatile Analysisby PyrolysisofRegolith–an instrument for in situ detection of water, noble gases, and organics on the Moon." Planetary andSpaceScience, (58): 1007–1017 [10.1016/j.pss.2010.03.006]

    ten Kate, I. L., E. H. Cardiff, J. P. Dworkin, et al. S. H. Feng, V. Holmes, C. Malespin, J. G. Stern, T. D. Swindle, and D. P. Glavin. 2010. "VAPoR - Volatile Analysis by Pyrolysis of Regolith - an instrument for in situ detection of water, noble gases, and organics on the Moon." Planetary and Space Science, 58: 1007-1017 [Full Text (Link)] [10.1016/j.pss.2010.03.006]

    Non-Refereed

    Glavin, D. P., C. Freissinet, P. R. Mahaffy, et al. K. Miller, J. Eigenbrode, R. Summons, M. Martin, H. Franz, A. Steele, D. Archer, S. Atreya, W. Brinckerhoff, A. Brunner, A. Buch, M. Cabane, P. Coll, P. Conrad, D. Des Marais, J. P. Dworkin, A. Fairen, P. Francois, J. Grotzinger, S. Kashyap, C. Malespin, A. McAdam, D. Ming, R. Navarro-Gonzalez, A. Pavlov, S. Squyres, J. Stern, D. Sumner, B. Sutter, and C. Szopa. 2015. "Martian Chlorobenzene Identified by Curiosity in Yellowknife Bay: Evidence for the Preservation of Organics in a Mudstone on Mars ." Lunar and Planetary Science Conference 46: 1178- .

    Brief Bio

    Charles Malespin is the Chief of the Planetary Environments Lab (Code 699), and serves as the Deputy Principal Investigator for the Sample Analysis at Mars (SAM) instrument suite currently on the Curiosity rover in Gale Crater, Mars. He also serves as PI for CADMES (a Europa Lander sample delivery system), is the SAM operations lead, and is responsible for directing the SAM testbed program, including defining, prioritizing, and organizing all experiments prior to the sequence execution on Mars by the SAM instrument.

    Malespin additionaly is a payload element lead for the mass spectrometer on the New Frontiers Dragonfly mission, and is the Venus Mass Spectrometer (VMS) lead for the Discovery Phase A DAVINCI+ mission.

     

     

    Selected Publications

    Refereed

    Szopa, C., C. Freissinet, D. Glavin, et al. M. Millan, A. Buch, H. Franz, R. E. Summons, D. Sumner, B. Sutter, J. Eigenbrode, R. Williams, R. Navarro-Gonzales, M. Guzman, C. Malespin, S. Teinturier, P. Mahaffy, and M. Cabane. 2020. "First detections of dichlorobenzene isomers and trichloromethylpropane from organic matter indigenous to Mars mudstone in Gale Crater, Mars: Results from the Sample Analysis at Mars instrument onboard the Curiosity Rover." Astrobiology 20 (2): [Full Text (Link)] [10.1089/ast.2018.1908]

    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]

    Trainer, M. G., M. H. Wong, T. H. McConnochie, et al. H. B. Franz, S. K. Atreya, P. G. Conrad, F. Lefèvre, P. R. Mahaffy, C. A. Malespin, H. L. Manning, J. Martín‐Torres, G. M. Martínez, C. P. McKay, R. Navarro‐González, Á. Vicente‐Retortillo, C. R. Webster, and M. Zorzano. 2019. "Seasonal Variations in Atmospheric Composition as Measured in Gale Crater, Mars." Journal of Geophysical Research: Planets 124 (11): 3000-3024 [10.1029/2019je006175]

    Buch, A., I. Belmahdi, C. Szopa, et al. C. Freissinet, D. Glavin, M. Millan, R. Summons, D. Coscia, S. Teinturier, J. Bonnet, Y. He, M. Cabane, R. Navarro‐Gonzalez, C. Malespin, J. Stern, J. Eigenbrode, P. Mahaffy, and S. Johnson. 2019. "Role of the Tenax® adsorbent in the interpretation of the EGA and GC‐MS analyses performed with the Sample Analysis at Mars in Gale crater." Journal of Geophysical Research: Planets 2019JE005973 [10.1029/2019je005973]

    Cohen, B. A., C. A. Malespin, K. A. Farley, et al. P. E. Martin, Y. Cho, and P. R. Mahaffy. 2019. "In Situ Geochronology on Mars and the Development of Future Instrumentation." Astrobiology ast.2018.1871 [10.1089/ast.2018.1871]

    He, Y., A. Buch, M. Morrison, et al. C. Szopa, C. Freissinet, A. J. Williams, M. Millan, M. Guzman, R. Navarro-Gonzalez, J. Y. Bonnet, D. Coscia, J. L. Eigenbrode, C. A. Malespin, P. R. Mahaffy, D. P. Glavin, J. P. Dworkin, P. Lu, and S. S. Johnson. 2019. "Application of TMAH thermochemolysis to the detection of nucleobases: application to the MOMA and SAM space experiment." Talanta 204 802-811 [Full Text (Link)] [10.1016/j.talanta.2019.06.076]

    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]

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    Non-Refereed

    Glavin, D. P., C. Freissinet, P. R. Mahaffy, et al. K. Miller, J. Eigenbrode, R. Summons, M. Martin, H. Franz, A. Steele, D. Archer, S. Atreya, W. Brinckerhoff, A. Brunner, A. Buch, M. Cabane, P. Coll, P. Conrad, D. Des Marais, J. P. Dworkin, A. Fairen, P. Francois, J. Grotzinger, S. Kashyap, C. Malespin, A. McAdam, D. Ming, R. Navarro-Gonzalez, A. Pavlov, S. Squyres, J. Stern, D. Sumner, B. Sutter, and C. Szopa. 2015. "Martian Chlorobenzene Identified by Curiosity in Yellowknife Bay: Evidence for the Preservation of Organics in a Mudstone on Mars ." Lunar and Planetary Science Conference 46 1178-

                                                                                                                                                                                            
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