SERVICE ON DOCTORAL JURIES
Lada Dimitrova (2009), SUNY-Stony Brook, W. Holt Supervisor. “Lithosphere Deformation Methods and Models Constrained by Surface Fault Data on Mars.”
Philipp Glaeser (2014), Technical University-Berlin, J. Oberst, Doctoral advisor. “Evaluation of Topography, Slopes, Illumination and Surface Roughness using Laser Altimetry from the Lunar Reconnaissance Orbiter.”
PH.D. NASA RESEARCH ADVISOR
Sumita Chakraborty, (Ph.D. 2011) U. Bern, “Co-alignment of planetary laser altimeters and their use for surface roughness investigations”.
Philipp Glaeser (Ph.D. 2014), Technical University, Berlin, above.
Sven Bauer (Ph.D. 2016 anticipated), DLR Aerospace Center, Berlin - Laser ranging for precision orbit determination on Lunar Reconnaissance Orbiter.
Lauren M. Jozwiak, (Ph.D. 2016) Brown U., NASA Harriet G. Jenkins Fellow, “Shallow Magmatic Intrusions: Comparisons of Formation and Evolution on Terrestrial Bodies”. interpretation using GRAIL gravity data.
Ariel Deutsch, Brown U. - NASA AS&ASTAR Graduate Fellow, commencing 2016.
Gregory A Neumann
(EMERITUS)
| Email: | gregory.a.neumann@nasa.gov |
| Phone: | 301.614.6026 |
| Org Code: | 698 |
| Address: |
NASA/GSFC Mail Code 698 Greenbelt, MD 20771 |
| Employer: | EMERITUS |
Missions & Projects
Current Projects
1996 - 2005 MOLA Laser altimetry investigation on Mars Global Surveyor
Geophysics
Altimetry crossover analysis; crustal structure of Mars; surface roughness; passive radiometry.
2004 – Mercury Surface, Space Environment, Geochemistry and Ranging- Mercury Laser Altimeter (MESSENGER-MLA)
Instrument Scientist, Geophysics Discipline Group Member
2009 – Lunar Reconnaissance Orbiter-Lunar Orbiter Laser Altimeter (LRO-LOLA)
Moons
Original mission co-Investigator; deputy Principal Investigator
2010 - Dawn Discovery Mission to Vesta and Ceres
Asteroids
Science Collaborator
2011 – Gravity Recovery and Interior Laboratory (GRAIL)
Co-Investigator
2017- OSIRIS-REx mission to asteroid Bennu
Remote Sensing
Participating Scientist. Calibration of zero-phase reflectance data from the OSIRIS-REx Laser Altimeter to obtain 1064-nm wavelength normal albedo.
Positions/Employment
Emeritus
NASA/ GSFC - Greenbelt, MD
November 2019 - Present
Research Scientist
NASA/ GSFC - Greenbelt, MD
2005 - October 2019
Research Scientist, Dept. Earth, Atmospheric and Planetary Sciences
MIT - Cambridge, MA
1996 - 2005
Lecturer, Geology Dept.
Johns Hopkins University. - Baltimore, MD
1996 - 1996
Associate Research Scientist
Johns Hopkins University - Baltimore, MD
1993 - 1996
Graduate Research Assistant
Brown University - Providence, RI
1990 - 1993
Consultant,Computing and Information Services
Brown University - Providence, RI
1989 - 1989
Geophysical Field Engineer
Brown University - Providence, RI
1982 - 1989
Engineer-Structural Analysis
Corner and Lada Co - Cranston, RI
1979 - 1982
Teaching Experience
Education
Brown University Geophysics M.S. 1991
Brown University Geophysics Ph.D 1993
Thesis: A Geophysical, Mechanical, and Statistical Analysis of
Seafloor Spreading Processes on the Southern Mid-Atlantic Ridge
Professional Societies
Member, American Geophysical Union, 1982-Present
2012 - Present
Member, 1995-2000; Chair, 1996-1997, AGU Tectonophysics Section Outstanding Student Awards Comittee.
1995 - 2000
Professional Service
Mentor, Graduate Studies Summer Research Program, NASA-GSFC, 1996, 2000.
Guest Lecturer, Maryland Space Grant Consortium, 1995, 1997.
Mentor, summer intern, Maryland Space Grant Consortium, 1994.
Reviewer for JGR-Planets, JGR-Solid Earth, Nature, Icarus, Science, Earth Planet. Sci. Lett., Geophys. Res. Lett., NASA and NSF panels
Consultant to National Geographic Magazine, 2000
Produced Topographic Globe of Mars sold by Sky and Telescope, 2000.
Awards
NASA Peer Achievement Award, 2006.
NASA Group Achievement Awards for MOLA, NEAR, LOLA, LR, MLA, and GRAIL Teams, 2000-2013.
R.H. Goddard Award for Scientific Excellence, 2011.
R.H. Goddard Award for Outreach, 2013.
R. H. Goddard Exceptional Achievement Team Award-GRAIL, 2014
NASA Special Act Service Award for laser altimetry, 2016
Special Experience
2000-01 Altimetry Lead, NEAR-Shoemaker Mission to 433 Eros
1997- Altimetry Lead, Mars Orbiter Laser Altimeter, Mars Global Surveyor.
1996 Chief Geophysicist, R/V Knorr KN145L17. Survey and dredging, S. Mid-Atlantic Ridge.
1994 Clementine - Laser Altimeter Investigation, gravity, mapping of lunar crustal thickness.
1990 Shipboard Scientist, R/V Thomas Washington. SeaBeam, gravity, magnetics, and seismic refraction.
1988 Rio Grande Rift, Socorro, N.M. - Magnetic Variation (MV) profile.
1988 Connecticut River Basin, gravity and MV profile.
1987 Narragansett Bay, RI. - MV survey.
1985 Project EMSLAB, Southern Oregon - Magnetotelluric (MT) and MV profile.
1983 Long Valley, California - MT and MV reconnaissance
1982 Iceland Neovolcanic Zone - MT survey
Talks, Presentations and Posters
Other
DIrector's Seminar
4, 2012
Moon and Mercury
Presentation to Dr. Weiler
June 6, 2011
Speaker, Millenium 2000 Program, Port Discovery, Baltimore, 2000
2000
Publications
Refereed
2024. "Near-infrared Photometry of the Moon’s Surface with Passive Radiometry from the Lunar Orbiter Laser Altimeter (LOLA)." The Planetary Science Journal 5 (5): 122 [10.3847/psj/ad4467] [Journal Article/Letter]
2023. "A New View of the Lunar South Pole from the Lunar Orbiter Laser Altimeter (LOLA)." The Planetary Science Journal 4 (9): 183 [10.3847/psj/acf3e1] [Journal Article/Letter]
2022. "The Contribution of Small Impact Craters to Lunar Polar Wander." The Planetary Science Journal 3 217 [10.3847/PSJ/ac8c39] [Journal Article/Letter]
2022. "The Contribution of Impact Craters and Basins to Lunar Polar Wander." The Planetary Science Journal 3 217 [Full Text] [10.3847/PSJ/ac8c39] [Journal Article/Letter]
2022. "Geodetic investigations of the mission concept MAGIC to reveal Callisto’s internal structure." Acta Astronautica 195 68-76 [Full Text] [10.1016/j.actaastro.2022.02.013] [Journal Article/Letter]
2021. "Improved LOLA Elevation Maps for South Pole Landing Sites: Error Estimates and Their Impact on Illumination Conditions." Planetary and Space Science 203 105119 [Full Text] [10.1016/j.pss.2020.105119] [Journal Article/Letter]
2021. "Deriving Mercury geodetic parameters with altimetric crossovers from the Mercury Laser Altimeter (MLA)." Journal of Geophysical Research - Planets 126 (4): e2020JE006683 [Full Text] [10.1029/2020JE006683] [Journal Article/Letter]
2020. "Hemispherical differences in the shape and topography of asteroid (101955) Bennu." Science Advances 6 (41): eabd3649 [Full Text] [10.1126/sciadv.abd3649] [Journal Article/Letter]
2020. "First Two-way Laser Ranging to a Lunar Orbiter: infrared observations from the Grasse station to LRO’s retro-reflector array ." Earth, Planets and Space [Full Text] [10.1186/s40623-020-01243-w] [Journal Article/Letter]
2020. "High-resolution gravity field models from GRAIL data and implications for models of the density structure of the Moon’s crust." Journal of Geophysical Research: Planets 125 (2): [10.1029/2019JE006086] [Journal Article/Letter]
2020. "Analyzing the ages of south polar craters on the Moon: Implications for the sources and evolution of surface water ice." Icarus 336 113455 [10.1016/j.icarus.2019.113455] [Journal Article/Letter]
2020. "Digital terrain mapping by the OSIRIS-REx mission." Planetary and Space Science 180 104764 [Full Text] [10.1016/j.pss.2019.104764] [Journal Article/Letter]
2019. "GRAIL-identified gravity anomalies in Oceanus Procellarum: Insight into subsurface impact and magmatic structures on the Moon." Icarus 331 192-208 [10.1016/j.icarus.2019.05.027] [Journal Article/Letter]
2019. "Searching for lunar horizon glow with the Lunar Orbiter Laser Altimeter." Journal of Geophysical Research - Planets [10.1029/2019JE006020] [Journal Article/Letter]
2019. "Age constraints of Mercury's polar deposits suggest recent delivery of ice." Earth and Planetary Science Letters 520 26-33 [10.1016/j.epsl.2019.05.027] [Journal Article/Letter]
2019. "The thickness of radar-bright deposits in Mercury's northern hemisphere from individual Mercury Laser Altimeter tracks." Icarus 323 40-45 [Full Text] [10.1016/j.icarus.2019.01.016] [Journal Article/Letter]
2019. "Shape of (101955) Bennu indicative of a rubble pile with internal stiffness." Nature Geoscience 12 (4): 247-252 [Full Text] [10.1038/s41561-019-0330-x] [Journal Article/Letter]
2019. "Geodetic evidence that Mercury has a solid inner core." Geophysical Research Letters 46 (7): 3625-3633 [Full Text] [10.1029/2018gl081135] [Journal Article/Letter]
2018. "Orbit determination of the Lunar Reconnaissance Orbiter: Status after Seven Years." Planetary and Space Science 162 2-19 [Full Text] [10.1016/j.pss.2017.10.004] [Journal Article/Letter]
2018. "Illumination conditions at the lunar poles: Implications for future exploration." Planetary and Space Science 162 170-178 [10.1016/j.pss.2017.07.006] [Journal Article/Letter]
2018. "In-flight characterization of the lunar orbiter laser altimeter instrument pointing and far-field pattern." Applied Optics 57 (27): 7702 [10.1364/ao.57.007702] [Journal Article/Letter]
2018. "Ice In Micro Cold-Traps on Mercury: Implications for Age and Origin." Journal of Geophysical Research - Planets 123 2178-2191 [10.1029/2018JE005644] [Journal Article/Letter]
2018. "Ring faults and ring dikes around the Orientale basin on the Moon." Icarus 310 1-20 [10.1016/j.icarus.2017.12.012] [Journal Article/Letter]
2018. "Constraining the thickness of polar ice deposits on Mercury using the Mercury Laser Altimeter and small craters in permanently shadowed regions." Icarus 305 (1): 139-148 [10.1016/j.icarus.2018.01.013] [Journal Article/Letter]
2018. "Trilogy, a planetary geodesy mission concept for measuring the expansion of the solar system." Planetary and Space Science 153 127-133 [Full Text] [10.1016/j.pss.2018.02.003] [Journal Article/Letter]
2018. "Solar System Expansion and Strong Equivalence Principle as seen by the NASA MESSENGER mission." Nature Communications 9 289 [Full Text] [10.1038/s41467-017-02558-1] [Journal Article/Letter]
2017. "Survey of Capabilities and Applications of Accurate Clocks: Directions for Planetary Science." Space Science Reviews 212 (3-4): 1433-1451 [10.1007/s11214-017-0424-y] [Journal Article/Letter]
2017. "New evidence for surface water ice in small-scale cold traps and in three large craters at the north polar region of Mercury from the Mercury Laser Altimeter." Geophysical Research Letters [10.1002/2017gl074723] [Journal Article/Letter]
2017. "Evidence for a Low Bulk Crustal Density for Mars from Gravity and Topography." Geophysical Research Letters 44 (15): 7686–7694 [Full Text] [10.1002/2017GL074172] [Journal Article/Letter]
2017. "GRAIL gravity observations of the transition from complex crater to peak-ring basin on the Moon: Implications for crustal structure and impact basin formation." Icarus 292 54-73 [10.1016/j.icarus.2017.03.024] [Journal Article/Letter]
2017. "Evidence for surface water ice in the lunar polar regions using reflectance measurements from the Lunar Orbiter Laser Altimeter and temperature measurements from the Diviner Lunar Radiometer Experiment." Icarus 292 74-85 [10.1016/j.icarus.2017.03.023] [Journal Article/Letter]
2017. "ICESAT/GLAS Altimetry Measurements: Received Signal Dynamic Range and Saturation Correction." IEEE Transactions on Geoscience and Remote Sensing 1-15 [10.1109/tgrs.2017.2702126] [Journal Article/Letter]
2017. "Observational constraints on the identification of shallow lunar magmatism: Insights from floor-fractured craters." Icarus 283 224-231 [10.1016/j.icarus.2016.04.020] [Journal Article/Letter]
2017. "Low-amplitude topographic features and textures on the Moon: Initial results from detrended Lunar Orbiter Laser Altimeter (LOLA) topography." Icarus 283 138-145 [10.1016/j.icarus.2016.07.017] [Journal Article/Letter]
2017. "Analysis of one-way laser ranging data to LRO, time transfer and clock characterization." Icarus 283 38-54 [10.1016/j.icarus.2016.09.026] [Journal Article/Letter]
2017. "The Laser Ranging Experiment of the Lunar Reconnaissance Orbiter: Five Years of Operations and Data Analysis." Icarus 283 55-69 [10.1016/j.icarus.2016.07.003] [Journal Article/Letter]
2017. "Summary of the Results from the Lunar Orbiter Laser Altimeter after Seven Years in Lunar Orbit." Icarus 283 70-91 [10.1016/j.icarus.2016.06.006] [Journal Article/Letter]
2016. "Comparison of areas in shadow from imaging and altimetry in the north polar region of Mercury and implications for polar ice deposits." Icarus 280 158-171 [Full Text] [10.1016/j.icarus.2016.06.015] [Journal Article/Letter]
2016. "Gravity field of the Orientale basin from the Gravity Recovery and Interior Laboratory Mission." Science 354 (6311): 438-441 [10.1126/science.aag0519] [Journal Article/Letter]
2016. "Demonstration of orbit determination for the Lunar Reconnaissance Orbiter using one-way laser ranging data." Planetary and Space Science 129 32-46 [10.1016/j.pss.2016.06.005] [Journal Article/Letter]
2016. "Subsurface morphology and scaling of lunar impact basins." Journal of Geophysical Research: Planets 121 (9): 1695–1712 [10.1002/2016je005038] [Journal Article/Letter]
2016. "Improved calibration of reflectance data from the LRO Lunar Orbiter Laser Altimeter (LOLA) and implications for space weathering." Icarus 273 315-328 [10.1016/j.icarus.2016.02.006] [Journal Article/Letter]
2016. "Lunar phase function at 1064 nm from Lunar Orbiter Laser Altimeter passive and active radiometry." Icarus 273 96–113 [10.1016/j.icarus.2016.02.008] [Journal Article/Letter]
2016. "A New Lunar Digital Elevation Model From the Lunar Orbiter Laser Altimeter and SELENE Terrain Camera." Icarus 273 346–355 [10.1016/j.icarus.2015.07.039] [Journal Article/Letter]
2016. "Seasonal and static gravity field of Mars from MGS, Mars Odyssey and MRO radio science." Icarus 272 228-245 [10.1016/j.icarus.2016.02.050] [Journal Article/Letter]
2015. "Lunar impact basins revealed by Gravity Recovery and Interior Laboratory measurements." Science Advances 1 (9): e1500852-e1500852 [Full Text] [10.1126/sciadv.1500852] [Journal Article/Letter]
2015. "The age of lunar south circum-polar craters Haworth, Shoemaker, Faustini and Shackleton: Implications for regional geology, surface processes and volatile sequestration." Icarus 255 70–77 [10.1016/j.icarus.2015.03.016] [Journal Article/Letter]
2015. "Simulated Recovery of Europa's Global Shape and Tidal Love Numbers from Altimetry and Radio Tracking During a Dedicated Flyby Tour." Geophysical Research Letters 42 (9): [10.1002/2015GL063224] [Journal Article/Letter]
2015. "Stratigraphy of the Caloris basin, Mercury: Implications for volcanic history and basin impact melt." Icarus 250 413–429 [10.1016/j.icarus.2014.11.003] [Journal Article/Letter]
2015. "The low-degree shape of Mercury." Geophys. Res. Lett. 42 6951–6958 [10.1002/2015GL065101] [Journal Article/Letter]
2015. "First MESSENGER orbital observations of Mercury's librations." Geophysical Research Letters 42 (19): 7881–7889 [10.1002/2015GL065152] [Journal Article/Letter]
2015. "Deep-seated thrust faults bound the Mare Crisium lunar mascon." Earth and Planetary Science Letters 427 (1): 183-190 [10.1016/j.epsl.2015.06.022] [Journal Article/Letter]
2014. "Kilometer-scale topographic roughness of Mercury: Correlation with geologic features and units." 41 (23): 8245–8251 [10.1002/2014GL062162] [Journal Article/Letter]
2014. "The location of Airy-0, the Mars prime meridian reference, from stereo photogrammetric processing of THEMIS IR imaging and digital elevation data." Journal of Geophysical Research: Planets 119 (12): 2471–2486 [10.1002/2014JE004678] [Journal Article/Letter]
2014. "The Gravity Field, Orientation, and Ephemeris of Mercury from MESSENGER Observations after Three Years in Orbit." J. Geophysical Res.-Planets 119 2417–2436 [10.1002/2014JE004675] [Journal Article/Letter]
2014. "Calibration of the Mercury Laser Altimeter on the MESSENGER Spacecraft." IEEE Transactions on Geoscience and Remote Sensing 53 (5): 2860-2874 [10.1109/TGRS.2014.2366080] [Journal Article/Letter]
2014. "The formation of lunar mascon basins from impact to contemporary form." Journal of Geophysical Research: Planets 119 (11): 2378–2397 [10.1002/2014JE004657] [Journal Article/Letter]
2014. "Lunar Floor-Fractured Craters as Magmatic Intrusions: Geometry, Modes of Emplacement, Associated Tectonic and Volcanic Features, and Gravity Structure." Icarus 248 424-447 [doi:10.1016/j.icarus.2014.10.052] [Journal Article/Letter]
2014. "Images of surface volatiles in Mercury's polar craters acquired by the MESSENGER spacecraft." Geology 42 (12): 1051-1054 [10.1130/G35916.1] [Journal Article/Letter]
2014. "Illumination conditions at the lunar south pole using high resolution Digital Terrain Models from LOLA." Icarus 243 78-90 [10.1016/j.icarus.2014.08.013] [Journal Article/Letter]
2014. "The global albedo of the Moon at 1064 nm from LOLA." Journal of Geophysical Research: Planets 119 (7): 1665-1679 [10.1002/2013JE004592] [Journal Article/Letter]
2014. "Structure and evolution of the lunar Procellarum region as revealed by GRAIL gravity data." Nature 514 68–71 [10.1038/nature13697] [Journal Article/Letter]
2014. "Lunar interior properties from the GRAIL mission." J. Geophys. Res.-Planets [10.1002/2013JE004559] [Journal Article/Letter]
2014. "High-resolution local gravity model of the south pole of the Moon from GRAIL extended mission data." Geophys. Res. Lett. 41 (10): 3367-3374 [Full Text] [10.1002/2014GL060178] [Journal Article/Letter]
2014. "GRGM900C: A degree-900 lunar gravity model from GRAIL primary and extended mission data." Geophys. Res. Lett. 41 (10): 3382-3389 [Full Text] [10.1002/2014GL060027] [Journal Article/Letter]
2014. "Detection of the lunar body tide by the Lunar Orbiter Laser Altimeter." Geophysical Research Letters 41 (7): 2282-2288 [Full Text] [10.1002/2013GL059085] [Journal Article/Letter]
2014. "Global inventory and characterization of pyroclastic deposits on Mercury: New insights into pyroclastic activity from MESSENGER orbital data." Journal of Geophysical Research: Planets 119 (3): 635–658 [10.1002/2013JE004480] [Journal Article/Letter]
2014. "Global characteristics of porosity and density stratification within the lunar crust from GRAIL gravity and Lunar Orbiter Laser Altimeter topography data." Geophysical Research Letters 41 (6): 1882–1889 [10.1002/2014GL059378] [Journal Article/Letter]
2013. "Lunar topographic roughness maps from Lunar Orbiter Laser Altimeter (LOLA) data: Scale dependence and correlation with geologic features and units." Icarus 226 (1): 52-66 [10.1016/j.icarus.2013.04.027] [Journal Article/Letter]
2013. "High-degree gravity models from GRAIL primary mission data." J. Geophys. Res.-Planets 118 1676-1698 [10.1002/jgre.20118] [Journal Article/Letter]
2013. "Investigating the origin of potential lava channels on Mercury observed in MESSENGER data:Theory and Observations." JOURNAL OF GEOPHYSICAL RESEARCH 118 471 – 486 [10.1029/2012JE004103] [Journal Article/Letter]
2013. "The Crust of the Moon as Seen by GRAIL." Science 339 (6120): 671-675 [10.1126/science.1231530] [Journal Article/Letter]
2013. "Bright and Dark Polar Deposits on Mercury: Evidence for Surface Volatiles." Science 339 (6117): 296-300 [Full Text] [10.1126/science.1229764] [Journal Article/Letter]
2013. "Thermal stability of volatiles in the north polar region of Mercury." Science 339 (6117): 300-303 [Full Text] [10.1126/science.1231106] [Journal Article/Letter]
2013. "Free space laser communication experiments from Earth to the Lunar Reconnaissance Orbiter in lunar orbit." Optics Express 21 (2): 1865 [10.1364/oe.21.001865] [Journal Article/Letter]
2013. "Space lidar developed at the NASA Goddard Space Flight Center - the first 20 years." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 6 (3): 1660-1675 [doi:10.1109/jstars.2013.2259578] [Journal Article/Letter]
2012. "Gravity field of the Moon from the Gravity Recovery and Interior Laboratory (GRAIL) Mission." Science 339 (6120): 668-671 [Full Text] [10.1126/science.1231507] [Journal Article/Letter]
2012. "The Crust of the Moon as Seen by GRAIL." Science 339 (6120): 671-675 [10.1126/science.1231530] [Journal Article/Letter]
2012. "Ancient Igneous Intrusions and Early Expansion of the Moon Revealed by GRAIL Gravity Gradiometry." Science 339 (6120): 675-678 [Full Text] [10.1126/science.1231753] [Journal Article/Letter]
2012. "Characterization of the Morphometry of Impact Craters Hosting Polar Deposits in Mercury's North Polar Region." JOURNAL OF GEOPHYSICAL RESEARCH 117 (E00L13): 12 [https://doi.org/10.1029/2012JE004155] [Journal Article/Letter]
2012. "Large impact basins on Mercury: Global distribution, characteristics, and modification history from MESSENGER orbital data." JOURNAL OF GEOPHYSICAL RESEARCH 117 2012JE004154 [10.1029/2012JE004154] [Journal Article/Letter]
2012. "The morphology of craters on Mercury: Results from MESSENGER flybys." Icarus 219 (1): 414-427 [10.1016/j.icarus.2012.02.029] [Journal Article/Letter]
2012. "Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry." Science 336 (6078): 217-220 [Full Text] [10.1126/science.1218805] [Journal Article/Letter]
2012. "Gravity Field and Internal Structure of Mercury from MESSENGER ." Science 336 (6078): 214-217 [Full Text] [10.1126/science.1218809] [Journal Article/Letter]
2012. "Orbit determination of the Lunar Reconnaissance Orbiter." J. Geodesy 86 (3): 193-207 [10.1007/s00190-011-0509-4] [Journal Article/Letter]
2012. "Lunar impact basins: Stratigraphy, sequence and ages from superposed impact crater populations measured from Lunar Orbiter Laser Altimeter (LOLA) data." Journal of Geophysical Research-Planets 117 (E00H06): [10.1029/2011JE003951] [Journal Article/Letter]
2012. "Characterization of the Morphometry of Impact Craters Hosting Polar Deposits in Mercury's North Polar Region." Journal of Geophysical Research [10.1029/2012JE004155] [Journal Article/Letter]
2012. "Lunar Floor- Fractured Craters: Classification, Distribution, Origin and Implications for Magmatism and Shallow Crustal Structure." JGR 2012JE004134 ( 117): E11005 [10.1029/2012JE004134] [Journal Article/Letter]
2012. "Constraints on the Volatile Distribution within Shackleton Crater at the Lunar South Pole." Nature 486 378–381 [10.1038/nature11216] [Journal Article/Letter]
2012. "Global Maps of Lunar Neutron Flux from LEND Instrument." JOURNAL OF GEOPHYSICAL RESEARCH JE003949 18 [10.1029/2011JE003949] [Journal Article/Letter]
2012. "Testing lunar permanently shadowed regions for water ice: LEND results from LRO." JOURNAL OF GEOPHYSICAL RESEARCH 117 E00H26 [10.1029/2011JE003971] [Journal Article/Letter]
2012. "The transition from complex craters to multi-ring basins on the Moon: Quantitative geometric properties from Lunar Reconnaissance Orbiter Lunar Orbiter Laser Altimeter (LOLA) data." JOURNAL OF GEOPHYSICAL RESEARCH 117 (E00H16): 29 [10.1029/2011JE004021] [Journal Article/Letter]
2012. "Locating the LCROSS Impact Craters." Space Sci Rev 167 (1-4): 71-92 [10.1007/s11214-011-9765-0] [Journal Article/Letter]
2011. "The transition from complex crater to peak-ring basin on the Moon: New observations from the Lunar Orbiter Laser Altimeter (LOLA) instrument." Icarus 214 377-393 [10.1016/j.icarus.2011.05.030] [Journal Article/Letter]
2011. "Thickness of Proximal Ejecta from the Orientale Basin from Lunar Orbiter Laser Altimeter (LOLA) Data: Implications for Multi-Ringed Basin Formation." GEOPHYSICAL RESEARCH LETTERS 38 (L17201): 5 [10.1029/2011GL048502] [Journal Article/Letter]
2011. "Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2009." Celestial Mechanics and Dynamical Astronomy 109 101 [Full Text] [10.1007/s10569-010-9320-4] [Journal Article/Letter]
2011. "Global surface slopes and roughness of the Moon from the Lunar Orbiter Laser Altimeter." Journal of Geophysical Research 116 02001 [Full Text] [10.1029/2010JE003716] [Journal Article/Letter]
2011. "Illumination Conditions of the Lunar Polar Regions Using LOLA Topography." Icarus 211 1066 [10.1016/j.icarus.2010.10.030] [Journal Article/Letter]
2010. "Hydrogen Mapping of the Lunar South Pole Using the LRO Neutron Detector Experiment LEND." Science 330 (6003): 483-486 [Full Text] [10.1126/science.1185696] [Journal Article/Letter]
2010. "The Lunar Reconnaissance Orbiter Laser Ranging Investigation." Space Science Reviews 150 (1-4): 63-80 [10.1007/s11214-009-9511-z] [Journal Article/Letter]
2010. "Accommodation of lithospheric shortening on Mercury from altimetric profiles of ridges and lobate scarps measured during MESSENGER flybys 1 and 2." Icarus 209 (1): 247-255 [Journal Article/Letter]
2010. "The equatorial shape and gravity field of Mercury from MESSENGER flybys 1 and 2." Icarus 209 (1): 88-100 [Full Text] [10.1016/j.icarus.2010.04.007] [Journal Article/Letter]
2010. "Initial observations from the Lunar Orbiter Laser Altimeter (LOLA)." Geophys. Res. Lett. 37 [Full Text] [10.1029/2010GL043751] [Journal Article/Letter]
2010. "The Lunar Orbiter Laser Altimeter Investigation on the Lunar Reconnaissance Orbiter Mission." Space Science Reviews 150 (1-4): 209-241 [Journal Article/Letter]
2010. "Geodetic constraints from multi-beam laser altimeter crossovers." Journal of Geodesy 84 (6): 343-354 [10.1007/s00190-010-0379-1] [Journal Article/Letter]
2010. "Global Distribution of Large Lunar Craters: Implications for Resurfacing and Impactor Populations." Science 329 (5998): 1504-1507 [10.1126/science.1195050] [Journal Article/Letter]
2009. "Time variations of Mars' gravitational field and seasonal changes in the masses of the polar ice caps ." J. of Geophys. Res.-Planets 114 (E05002): [Full Text] [10.1029/2008JE003267] [Journal Article/Letter]
2009. "Mercury's internal magnetic field: Constraints on large- and small-scale fields of crustal origin ." Earth and Planetary Science Letters 285 (3-4): 340-346 [10.1016/j.epsl.2008.12.017] [Journal Article/Letter]
2009. "PLANETARY SCIENCE Seeing the Missing Half." Science 323 (5916): 885-887 [Journal Article/Letter]
2007. "Laser Ranging for Gravitational, Lunar and Planetary Science." International Journal of Modern Physics D 16 2151 [Full Text] [10.1142/S0218271807011565] [Journal Article/Letter]
2006. "Two-Way Laser Link over Interplanetary Distance." Science 311 (5757): 53-53 [10.1126/science.1120091] [Journal Article/Letter]
2006. "Mars 1064 nm spectral radiance measurements determined from the receiver noise response of the Mars Orbiter Laser Altimeter." Applied Optics IP, vol 45, Issue 17, pp3960-3971 45 3960 [Full Text] [10.1364/AO.45.003960] [Journal Article/Letter]
2005. "New perspectives on ancient Mars." Science 307 12141220 [10.1126/science.1101812] [Journal Article/Letter]
2003. "Mars Orbiter Laser Altimeter pulse width measurements and footprint-scale roughness." Geophysical Research Letters 30 (11): 1561 [10.1029/2003GL017048] [Journal Article/Letter]
2003. "Two Mars years of clouds detected by the Mars Orbiter Laser Altimeter." J Geophys Res 108 (E4): 5023 [10.1029/2002JE001849] [Journal Article/Letter]
2003. "Two Mars years of clouds detected by the Mars Orbiter Laser Altimeter." J. Geophys. Res. 108 (E4): 5023 [10.1029/2002JE001849] [Journal Article/Letter]
2002. "Small-Scale Topography of 433 Eros from Laser Altimetry and Imaging." Icarus 155 51 [Full Text] [10.1006/icar.2001.6750] [Journal Article/Letter]
2001. "An improved solution of the gravity field of Mars (GMM-2B) from Mars Global Surveyor." J. Geophys. Res.-Planets 106 (E10): 23359-23376 [10.1029/2000JE001426] [Journal Article/Letter]
2001. "Mars Orbiter Laser Altimeter: Experiment summary after the first year of global mapping of Mars ." J. Geophysical Research-Planets 106 (E10): 23689-23722 [Full Text] [10.1029/2000JE001364] [Journal Article/Letter]
2001. "Crossover analysis of Mars Orbiter Laser Altimeter data." J. Geophys. Res.-Planets 106 (E10): 23753-23768 [10.1029/2000JE001381] [Journal Article/Letter]
2001. "Laser Altimetry of Small-Scale Features on 433 Eros from NEAR-Shoemaker." Science 292 488 [Full Text] [10.1126/science.1058330] [Journal Article/Letter]
2000. "Internal structure and early thermal evolution of Mars from Mars Global Surveyor topography and gravity." Science 287 1788-1793 [10.1126/science.287.5459.1788] [Journal Article/Letter]
2000. "The Shape of 433 Eros from the NEAR-Shoemaker Laser Rangefinder." Science 289 2097-2101 [Full Text] [10.1126/science.289.5487.2097] [Journal Article/Letter]
1999. "The use of laser altimetry in the orbit and attitude determination of Mars Global Surveyor." Geophys. Res. Lett. 26 (9): 1191-1194 [10.1029/1999GL900223] [Journal Article/Letter]
1999. "The Global Topography of Mars and Implications for Surface Evolution." Science 284 (5419): 1495-1503 [10.1126/science.284.5419.1495] [Journal Article/Letter]
1997. "A 70th degree lunar gravity model (GLGM-2) from Clementine and other tracking data." J. Geophys. Res.-Planets 102 (E7): 16339-16359 [10.1029/97JE01418] [Journal Article/Letter]
1997. "Topography of the Moon from the Clementine LIDAR." J. Geophys. Res.-Planets 102 (E1): 1591-1611 [10.1029/96JE02940] [Journal Article/Letter]
1996. "The lunar crust: Global structure and signature of major basins." J. Geophys. Res.-Planets 101 (E7): 16841-16863 [10.1029/96JE01246] [Journal Article/Letter]
1996. "Temporal variation of crustal emplacement, 33°S Mid-Atlantic Ridge." FARA-IR Mid-Atlantic Ridge Symposium June19-22 Reykjavik J Conf Abs Cambridge 1 (2): 836-837 [Journal Article/Letter]
1995. "High resolution statistical estimation of seafloor fabric: The morphology of an evolving spreading center." Mar Geophys Res 17 221-250 10.1007/BF01203464 [Journal Article/Letter]
1994. "The shape and internal structure of the Moon from the Clementine mission ." Science 266 (592): 1839-1844 [10.1126/science.266.5192.1839] [Journal Article/Letter]
1994. "Mantle control of a dynamically evolving spreading center." Earth Planet Sci Lett 121 451-468 [10.1016/0012-821X(94)90083-3] [Journal Article/Letter]
1993. "Comparison of marine gravity from shipboard and high-density satellite altimetry along the Mid-Atlantic Ridge, 305°-355°S." Geophys Res Lett 20 (15): 1639-1642 [10.1029/93GL01487] [Journal Article/Letter]
1993. "The paradox of the axial profile: Isostatic compensation along the Mid-Atlantic Ridge?." J Geophys Res 98 17981-17910 [Journal Article/Letter]
Non-Refereed
2018. "A Large Solid Inner Core at Mercury." 49th Lunar and Planetary Science Conference (Virtual Meeting), 19-23 March 2018, The Woodlands, Texas Abstract # 6036 [Full Text] [Proceedings]
2018. "New Insights into Mercury’s Interior with the MESSENGER Mission." Proceedings of the 49th Lunar and Planetary Science Conference, The Woodlands, Texas, U.S.A., March 19-23, 2018. Paper # 1659 [Full Text] [Proceedings]
2016. "The Contributions of ILRS Laser Ranging to the Lunar Reconnaissance Orbiter Mission." 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016 [Full Text] [Proceedings]
2016. "A global degree and order 1200 model of the lunar gravity field using GRAIL mission data." Proceedings of the 47th Lunar and Planetary Science Conference, March 21-25, 2016, The Woodlands, Texas, U.S.A. Paper # 1484 [Full Text] [Proceedings]
2014. "In-flight performance of the Mercury Laser Altimeter laser transmitter." Solid State Lasers XXIII: Technology and Devices [10.1117/12.2041452] [Proceedings]
2013. "Improved precision orbit determination of lunar orbiters from GRAIL-derived lunar gravity models." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II 1125-1141 [Proceedings]
2013. "Modeling and precise orbit determination in suport of gravity model development for the GRAIL mission." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II 1111-1123 [Proceedings]
2013. "Implementation of one‐way laser ranging observations into LRO orbit determination." Proceedings of the 18th International Laser Ranging Workshop, Fujiyoshida, Japan, November 11-15, 2013 [Full Text] [Proceedings]
2013. "SPACE LIDARS DEVELOPED AT NASA GSFC." IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING (JSTARS) 6 (3): 1660 - 1675 [10.1109/JSTARS.2013.2259578] [Journal Article/Letter]
2013. "Simultaneous Laser Ranging and Communication from an Earth-Based Satellite Laser Ranging Station to the Lunar Reconnaissance Orbiter in Lunar Orbit.”." Proceedings of the SPIE XXV Conference on Free-Space Laser Communication and Atmospheric Propagation [10.1117/12.2006645] [Proceedings]
2012. "Mapping Mercury Topography by Laser – Performance of the Mercury Laser Altimeter on the MESSENGER Spacecraft." SPIE Newsroom 3 [10.1117/2.1201210.004489] [Journal Article/Letter]
2012. "Investigating the origin of potential lava channels on Mercury observed in MESSENGER data:Theory and Observations." Journal of Geophysical Research [10.1029/2012JE004103] [Journal Article/Letter]
2009. "Laser Altimeter Measurements from MESSENGER's Recent Mercury Flybys." 2009 Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science 116-117 [Full Text] [Journal Article/Letter]
2002. "Aspects of Processing Extra-terrestrial Lidar Data: Clementine, NEAR, MOLA ." International Archives of Photogrammetry and Remote Sensing, Volume XXXIV-3/W4, Annapolis, Maryland, 22-24 Oct. 2001 73-80 [Full Text] [Proceedings]
2000. "Orbit determination for Mars Global Surveyor during mapping." Proceedings of the AAS/AIAA Astrodynamics Meeting, Aug. 16-19, 1999, Girdwood, Alaska, Advances in the Astronautical Sciences 103 435-451 [Proceedings]
1999. "Precise orbit determination for Mars Global Surveyor during Hiatus and SPO." AAS/AIAA Spaceflight Mechanics Meeting, Feb. 3–7, 1999, Breckinridge, Colorado, Advances in the Astronautical Sciences 102 649-666 [Proceedings]
1996. "Results from the Clementine lunar geodesy investigation." Astrodynamics 1995 (AAS/AIAA Astrodynamics Meeting, Feb. 14–17, 1995, Halifax, Nova Scotia, Canada) 90 201-223 [Proceedings]