Astrochemistry Laboratory

Stefanie N Milam

(RESEARCH AST, SOLAR SYSTEMS ANALYSIS)

Stefanie N Milam's Contact Card & Information.
Email: stefanie.n.milam@nasa.gov
Phone: 301.614.6902
Org Code: 691
Address:
NASA/GSFC
 Mail Code 691
 Greenbelt, MD 20771
Employer:
NASA

Missions & Projects

Brief Bio

Dr. Milam works in the Astrochemistry Laboratory at the NASA Goddard Space Flight Center. She is an expert in rotational spectroscopy, observations, and laboratory modeling of astrochemistry and molecular astrophysics of the interstellar medium, star formation regions, and comets. Her observational focus is on the compositional studies of primitive bodies, namely comets and interstellar objects, and uses ground- and space-based facilities to understand their connection to the formation and evolution of planetary systems. She also has a laboratory dedicated to simulate interstellar/cometary/planetary ices and detect trace species employing the same techniques used for remote observations to help constrain the chemical complexity of the ices, the amount of processing that occurs, and interpret past and present data from missions that observe ice features. Dr. Milam has been working on the James Webb Space Telescope (JWST) as the Project Scientist for Policy and Science Community since 2024, and prior to that as Deputy Project Scientist for Planetary Science since 2014 and the Planetary Science Liaison since 2012. She also led the study team for solar system science for the Roman Space Telescope. In 2021, she was honored with asteroid 40706 (1999 RO240) was renamed to 40706 Milam and received the NASA Exceptional Scientific Achievement Medal in 2022 for her work on enabling Solar System Science with JWST.

 

Research Interests

SubLIME – Sublimation Laboratory Ice Millimeter / submillimeter Experiment

Solar System: Astrochemistry

https://science.gsfc.nasa.gov/691/sublime/


We have developed a laboratory technique that utilizes gas-phase, direct-absorption millimeter and submillimeter spectroscopy to detect and identify desorbed species from ice samples, including those representative of interstellar and cometary ices. The results of these in-situ measurements are directly comparable to remote observations by instruments used by, ALMA, JWST, and other submillimeter and infrared spectroscopic observatories. This project combines the structure specificity and high resolution of gas-phase rotational spectroscopy with studies of gas/ice interactions in planetary/cometary ice analogs. Our experiment offers the planetary science community a powerful new tool for the studies of chemical evolution, molecular complexity, and prebiotic origins throughout the Solar System and the universe.


Theory and Observation Group

Solar System: Comets

https://science.gsfc.nasa.gov/691/theory/

Our research group is part of the Astrochemistry Laboratory in the Solar System Exploration Division at NASA's Goddard Space Flight Center. We specialize in developing theoretical models for the formation and destruction of molecules in comets, the interstellar medium, circumstellar envelopes, and other extraterrestrial environments. In combination with spectroscopic observations using radio/submillimeter/infrared telescopes, we investigate the chemical origins and evolution of matter throughout the Galaxy.

Solar System Science with JWST

Solar System: Remote Sensing

https://science.gsfc.nasa.gov/691/JWSTSSS/index.html

The James Webb Space Telescope (JWST) Solar System Science Group serves both the Guaranteed Time Observing (GTO) program team of Dr. Heidi Hammel (AURA) as well as General Observing (GO) investigators with Solar System time and some aspects of the Jupiter ERS Program led by Imke de Pater and Thierry Fouchet. The group consists of members from many institutions across the world, all with the common goal of utilizing the power of JWST for the exploration of our own solar system.

Positions/Employment

JWST Project Scientist for Policy and Science Community

NASA - Greenbelt, MD

April 2024 - Present

Research Physical Scientist

NASA Goddard Space Flight Center - Greenbelt, MD

February 2010 - Present


James Webb Space Telescope Deputy Project Scientist for Planetary Science

NASA Goddard Space Flight Center - Greenbelt, MD

July 2014 - April 2024


James Webb Space Telescope Planetary Science Liaison

NASA Goddard Space Flight Center - Greenbelt, MD

March 2012 - July 2014


Principal Investigator

SETI Institute at NASA/Ames Research Center - Moffett Field, CA

October 2009 - January 2010


Research Associate

SETI Institute at NASA/Ames Research Center - Moffett Field, CA

October 2007 - January 2010


Education

  • B.S. (Summa Cum Laude) in Chemistry, May 11, 2002, Kansas Wesleyan University, Salina, KS 67401
  • Ph.D. in Chemistry, December 15, 2007, University of Arizona, Tucson, AZ 85721

Professional Societies

American Astronomical Society

2002 - Present

American Chemical Society

2002 - Present

Division for Planetary Sciences

2008 - Present

AAS Laboratory Astrophysics Division

Member at Large (2016-2019), Vice Chair (2021-2023), Chair (2023-2025), Past Chair (2025-2027)

2012 - Present

ACS Astrochemistry Subdivision

2013 - Present

International Astronomical Union

member

2018 - Present

Professional Service

Journal Referee:

Astronomical Journal

Astrophysical Journal

Astronomy & Astrophysics

Journal of Chemical Physics

Astrophysics and Space Science

Reports on Progress in Physics

Monthly Notices of the Royal Astronomical Society

Icarus

Nature Reviews Physics


Professional Committees:

GSFC Science Director’s Committee (2013-2015)

HST Solar System Advisory Committee (2013-2014)

GSFC Planetary Science Strategic Fellow (2012-2015)

Origins Space Telescope (OST) Science and Technology Definition Team (2016-2020)

Planetary Science for Astrophysics Assets co-Chair (2018 - 2019)

Planetary Science and Astrobiology Decadal Survey 2023-2032 – Small Bodies Panel member

Keck Strategic Plan Solar System co-chair (2016)

AAS LAD Election Nominating Committee (2019)

Small Bodies Assessment Group Steering Committee (2020-2023)

DPS Prize Committee (2021-2022)

COSPAR Vice-Chair of Sub-Commission B1 – Small Bodies (2021-2024)

International Symposium on Molecular Spectroscopy International Advisory Committee (2021-2024)

ALMA North American Science Advisory Committee (2021-2024)

NRAO Users Committee (2021-2024)

ALMA Science Advisory Committee (2022-2024), Chair (2024-2026)

NASA Agency Science Workforce Implementation Team – Project Science (2021-2023)

NASA’s Infrared Telescope Facility (IRTF) Independent Review Panel (2023)

NASA Postdoctoral Program Prospective Review Study Team – co-Chair (2023-2024)


Selected Professional Activities:

Mission/Concept Work:

James Webb Space Telescope Project Scientist for Policy and Science Community (2024-current)

James Webb Space Telescope Deputy Project Scientist for Planetary Science (2014-2024)

Comet Astrobiology Explorer Sample Return (CAESAR) Deputy Project Scientist, NF4/NF5 (2018-current)

Orbiting Configurable Artificial Star (ORCAS) (2019-current)

Far Infrared Spectroscopy Space Telescope (FIRSST) (2022-current)

Nancy Grace Roman (formerly WFIRST) Solar System Working Group NASA/GSFC lead

SOFIA 4th generation instrument HIRMES co-investigator, Science Team

ESA SPICA Science Team, Solar System

James Webb Space Telescope Planetary Science Liaison (2012-2014)

Planetary Origins and Evolution Multispectral Monochromator (POEMM), Science Team (2023-current)

 

Special Training:

·        Franklin Covey's Inclusive Leadership: Practical Ways to Cultivate Inclusion and Build a Better Team (January 2024)

·        Implicit Bias Training (April 2022)

·        Technical Managers Training 50 – NASA Wallops (April 2017)

·        NASA Project Science Training (2013)

·        Participant in the Goddard Diversity Dialogue Project, Phase V


Selected Professional Activities:

·        Astronomy and Astrophysics Annual Reviews Guest Editor (2024-2026)

·        Science with the Hubble and James Webb Space Telescopes VII SOC (2023-2024)

·        Journal of Geophysical Research – special JWST edition editor (2032-2024)

·        New Great Observatories Science Analysis Group member (2023-current)

·        242nd AAS Meeting – organized a Meeting-in-a-Meeting for the Laboratory Astrophysics Division

·        SOC for ngVLA/SKA New Eyes on the Universe meeting in Vancouver, Canada (May 2023)

·        SOC ALMA at 10 years: Past, Present, and Future in Puerto Varas, Chile (December 2023)

·        241st AAS Meeting – organized 2 special sessions for LAD on JWST laboratory needs and Mars Habitability

·        240th AAS Meeting – organized a Meeting-in-a-Meeting for the Laboratory Astrophysics Division

·        54th DPS Meeting – organized JWST townhall and a proposal workshop as well as a LAD special session for Laboratory Needs for Future Planetary Missions

·        Organizer for Earth Geysers and Ocean World Plumes: The challenges of characterizing a unique environment at AbSciCon 2022

·        SOFIA: Rock, Dust and Ice: Interpreting planetary data meeting – panel moderator March 2021

·        JWST Guaranteed Time Observation Team (Hammel – IDS program) – PI of two observing programs

·        Europa-Clipper Supporting Observation Team (2022-current)

·        NASA DART supporting observation team (JWST, ALMA)

·        Co-Organizer for NASA CONNECTORS (CONNECting high school students TO ResearcherS) with Danna Qasim and Bishop McNamara High School (2021-current)

·        Session Organizer for 240th AAS 2022 – Laboratory Astrophysics Division (cancelled due to the COVID)

·        Keynote speaker and SOC for Planets 2020 Ground and space observatories: a joint venture to planetary science held in Santiago, Chile (Spring 2020).

·        SOC for SPICA Science Conference held in Crete, Greece (Spring 2019).

·        SOC for Astrophysical Frontiers in the Next Decade and Beyond: Planets, Galaxies, Black Holes, and the Transient Universe held in Boulder, CO (June 2018).

·        SOC for NASA’s Laboratory Astrophysics Workshop held in Athens, GA (April 2018).

·        Co-Chair for Planning Solar System Observations with JWST workshops (Nov/Dec 2017).

·        Organizer for JWST proposal workshop at EPSC and DPS (September and October 2017).

·        Organized JWST and WFIRST Townhall events at DPS (October 2017).

·        SOC for Frontiers of ACS Astrochemistry Symposium: Solar System Chemistry - Planets to Comets and Beyond, Aug. 2016, Philadelphia, PA.

·        Special editor for Innovative Solar System Science with the James Webb Space Telescope (PASP volume 128 issue 959).

·        Keynote speaker and guest lecturer at UNISA Summer School on Power Oct. 26-30, 2015 in Johannesburg, South Africa.

·        SOC/LOC and chair for “From interstellar ices to polycyclic aromatic hydrocarbons: A symposium to honor Lou Allamandola's contributions to the molecular Universe”, Sept. 13-17, 2015, Annapolis, MD.

·        Organizer of Astrobiology Science Conference Session “How to Build a Habitable Planet: Determining the Origin and Nature of Prebiotic Species in Comets”, June 15-19, 2015, Chicago, IL.

·        SOC for FarIR Surveyor Workshop, June 3-5, 2015, Beckman Institute at Caltech.

·        Session Chair 249th ACS Carbon in the Galaxy Astrochemistry Symposium, March 22-26, 2015.

·        Organized JWST workshop on Potential Science Investigations in the Solar System at the 46th Annual DPS Meeting November 2014.

·        Science Analysis Group #9 to the Cosmic Origins Program Analysis Group (COPAG) regarding Spitzer and JWST.

·        LOC for International Workshop on Instrumentation for Planetary Missions, Nov 4-7, 2014, GSFC.

·        SOC and Session Chair for Ground and space observatories: a joint venture to the Solar System and exoplanets, March 2015, Chile.

·        Session Chair LPSC 2014.

·        Coordinated ground-based observing campaigns for cometary apparitions at NRAO GBT, ARO SMT, JCMT, APEX, and ALMA for comets C/2009 P1 (Garradd), C/2011 L4 (PanSTARRS), C/2012 F6 (Lemmon), C/2012 S1 (ISON), C/2014 Q2 (Lovejoy).

·        External Ephemeris tracking Commissioning for ALMA – Science Verification Proposal

·        Developed six Science Fliers for JWST: “MIRI and NIRSpec observations of Asteroids” and “JWST Observations in the Solar System”.

·        Organized NRAO Community Day at GSFC (October 2013).

·        Organized two Townhalls (DPS 2013 and LPSC 2014) on “Solar System Observations with JWST”.

·        Organized three workshops (DPS 2012, LPSC 2013, DPS 2014) on “Planning your Solar System Observations with JWST”.

·        Principle organizer of Astrobiology Science Conference Session “Extraterrestrial Biomolecules in the New Age of Astronomical Instrumentation”.

·        Organizer (PI) of Lorentz Center Workshop “Isotopes in Astrochemistry: An Interstellar Heritage for Solar System Materials?” Leiden, NL, December 2011.

·        SOC for Workshop on Cometary Taxonomy, Annapolis, MD, March 2011.

·        Participation in the Ground Based Observing Team for NASA’s EPOXI mission in November 2010.

·        SOC for a workshop on Cometary Radio Astronomy, Greenbank, VA, 16-19 May, 2010.

·        Part of commissioning team for the new ALMA Band 6 receiver to the Arizona Radio Observatory Submillimeter Telescope in 2006/2007.

·        Participation in the Ground Based Observing Team for NASA’s DEEP IMPACT in July 2005.

·        Participation in planning and carrying out observations using numerous telescopic facilities (ALMA, Herschel Space Observatory, SOFIA, ARO 12m and Submillimeter telescopes, NRAO GBT, JCMT, APEX, and IRAM 30m) from 2002-present.

·        Science Proposal Reviewer: NASA ROSES programs (PATM, OSS, APRA, ADAP, EW, XRP), NASA Earth and Space Sciences Fellowship, United States-Israel Binational Science Foundation, NSF astronomy, Discovery Red Team, and GSFC Internal Research and Development (IRAD) proposals.

·        Time Allocation Committees: SOFIA TAC Cycle 7 (chair) and Cycle 8; Spitzer Cycle 13 TAC (chair); ALMA Cycles 3,4, and 6; HST Cycles 31 and 32; JWST Cycle 1 and 2 (panel oversight)

·        Funded through NASA’s ROSES and ISFM and GSFC Science Innovation Funding and Science Task Group programs: ADAP, APRA, PAST, PATM, OSS, SSW, NAI (GCA), ISFM/FLaRe, OSEAN - STG.


 

Awards

2022               NASA Honor Award/Group Achievement – JWST Project Science Team

2022               NASA GSFC Science and Exploration Division Excellence in Diversity, Equity, Inclusion, and Accessibility (DEIA) Award

2022               NASA Scientific Achievement Medal

2021               Asteroid named (40706) Milam = 1999 RO240

2021               NASA GSFC Special Act Award

2019               NASA Honor Award/Group Achievement – Astrophysics Large Mission Study Team

2019               NASA GSFC Special Act Award

2017-2022      NASA GSFC Distinguished Performance Award (annually)

2016               Special Act Award – Leadership of the SOC/LOC for the Allamandola Symposium

2015               Robert H. Goddard Honor Award – Exceptional Achievement in Science (Individual)

2015               Robert H. Goddard Honor Award – Exceptional Achievement in Science (JWST Project Science Team)

2013-2015      NASA GSFC Distinguished Performance Award

2012/2014      NASA GSFC Science Innovation Fund

2008               Young Alumni Award, Kansas Wesleyan University

2005-2007      Achievement Rewards for College Scientist (ARCS) - Phoenix Chapter

2005-2006      Galileo Circle Scholarship, University of Arizona

2001-2002      Alpha Chi Honor Society (President), Kansas Wesleyan University

1999-2002      Eisenhower Scholarship, Kansas Wesleyan University


 

Other Professional Information

Mentoring:

Shreya Kakkenpara Suresh (2025-current): NASA Postdoctoral Fellow

Emily R. Ingman (2025-current): American University Research Associate

Katarina Yocum (2022-2025): NASA Postdoctoral Fellow

Olivia H. Wilkins (2022-2024): NASA Postdoctoral Fellow

Emily Hockey (2021-2024): UMD Graduate Committee

Naomi Rowe-Gurney (2021-2023): CRESST/UMD Postdoctoral Position

Ian Wong (2021-2024): NASA Postdoctoral Fellow

Katarina Yocum (2017-2022): Emory University/University of Wisconsin-Madison Graduate Student

Nathaniel X. Roth (2019-2021): NASA Postdoctoral Fellow

Miguel de Val-Borro (2016-2018): Catholic University of America, Research Associate

Shawn Booth (2016): NASA Summer Internship

Gilles Adande (2014-2016): NASA Postdoctoral Fellow

Cristina Thomas (2014-2017): NASA Postdoctoral Fellow, JWST

Adeline Gicquel (2012-2014): Catholic University of America, Research Associate

Lillian Haynes (2013): Harvey Mudd University, Astrobiology Summer Intern

Maissa Salama (2009): University of California Berkeley

Matthew Levit (2008): Pennsylvania State University, SETI Summer Intern

Danna Qasim (2005-2007): University of Arizona Women in Science and Engineering Intern

 

Publications

Refereed

2025. "Photolysis and Sublimation Chemistry of Ammonium Cyanide with Relevance to Cometary Environments." The Planetary Science Journal 6 (1): 10 [10.3847/psj/ad9a67] [Journal Article/Letter]

2024. "Evidence for Surprising Heavy Nitrogen Isotopic Enrichment in Comet 46P/Wirtanen’s Hydrogen Cyanide." The Planetary Science Journal 5 (10): 221 [10.3847/psj/ad7829] [Journal Article/Letter]

2023. "Author's Reply to Comment by Greaves et al. on “Phosphine in the Venusian Atmosphere: A Strict Upper Limit From SOFIA GREAT Observations”." Geophysical Research Letters 50 (23): [10.1029/2023gl106136] [Journal Article/Letter]

2023. "Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices." The Astrophysical Journal Letters 958 (2): L41 [10.3847/2041-8213/ad0bee] [Journal Article/Letter]

2023. "ALMA Observations of the DART Impact: Characterizing the Ejecta at Submillimeter Wavelengths." The Planetary Science Journal 4 (11): 206 [10.3847/psj/acfcaa] [Journal Article/Letter]

2023. "Endogenous CO 2 ice mixture on the surface of Europa and no detection of plume activity." Science 381 (6664): 1305-1308 [10.1126/science.adg4270] [Journal Article/Letter]

2023. "Molecular Outgassing in Centaur 29P/Schwassmann–Wachmann 1 during Its Exceptional 2021 Outburst: Coordinated Multiwavelength Observations Using nFLASH at APEX and iSHELL at the NASA-IRTF." The Planetary Science Journal 4 (9): 172 [10.3847/psj/ace1e9] [Journal Article/Letter]

2023. "Gas Sources from the Coma and Nucleus of Comet 46P/Wirtanen Observed Using ALMA." The Astrophysical Journal 953 (1): 59 [10.3847/1538-4357/ace0bc] [Journal Article/Letter]

2023. "JWST molecular mapping and characterization of Enceladus’ water plume feeding its torus." Nature Astronomy 7 (9): 1056-1062 [10.1038/s41550-023-02009-6] [Journal Article/Letter]

2023. "The Science Performance of JWST as Characterized in Commissioning." Publications of the Astronomical Society of the Pacific 135 (1046): 048001 [10.1088/1538-3873/acb293] [Journal Article/Letter]

2023. "Coma composition of comet 67P/Churyumov-Gerasimenko from radio-wave spectroscopy." Astronomy & Astrophysics 672 A170 [10.1051/0004-6361/202245672] [Journal Article/Letter]

2022. "Phosphine in the Venusian Atmosphere: A Strict Upper Limit From SOFIA GREAT Observations." Geophysical Research Letters 49 (22): [10.1029/2022gl101055] [Journal Article/Letter]

2022. "A SUBLIME 3D Model for Cometary Coma Emission: The Hypervolatile-rich Comet C/2016 R2 (PanSTARRS)." The Astrophysical Journal 929 (1): 38 [10.3847/1538-4357/ac5893] [Journal Article/Letter]

2021. "Leveraging the ALMA Atacama Compact Array for Cometary Science: An Interferometric Survey of Comet C/2015 ER61 (PanSTARRS) and Evidence for a Distributed Source of Carbon Monosulfide." ApJ 921 14 [https://doi.org/10.3847/1538-4357/ac0441] [Journal Article/Letter]

2021. "No evidence of phosphine in the atmosphere of Venus from independent analyses." Nature Astronomy 5 (7): 631-635 [10.1038/s41550-021-01422-z] [Journal Article/Letter]

2021. "Sublimation of Laboratory Ices Millimeter/Submillimeter Experiment (SubLIME): Structure-specific Identifications of Products from UV-photolyzed Methanol Ice." The Astrophysical Journal 913 (1): 61 [10.3847/1538-4357/abf14e] [Journal Article/Letter]

2021. "Molecular composition of comet 46P/Wirtanen from millimetre-wave spectroscopy." Astronomy & Astrophysics 648 A49 [10.1051/0004-6361/202040125] [Journal Article/Letter]

2021. "Laboratory Studies in Support of the Exploration of Ocean Worlds and NASA Missions." Vol. 53, Issue 4 (Planetary/Astrobiology Decadal Survey Whitepapers) 53 (4): [10.3847/25c2cfeb.935e24ec] [Journal Article/Letter]

2021. "Rapidly Varying Anisotropic Methanol (CH3OH) Production in the Inner Coma of Comet 46P/Wirtanen as Revealed by the ALMA Atacama Compact Array." The Planetary Science Journal 2 (2): 55 [10.3847/psj/abdd3a] [Journal Article/Letter]

2021. "Origins Space Telescope science drivers to design traceability." Journal of Astronomical Telescopes, Instruments, and Systems 7 (01): [10.1117/1.jatis.7.1.011012] [Journal Article/Letter]

2021. "Heterodyne Receiver for Origins." Journal of Astronomical Telescopes, Instruments, and Systems 7 (01): [10.1117/1.jatis.7.1.011007] [Journal Article/Letter]

2021. "Origins Space Telescope: baseline mission concept." Journal of Astronomical Telescopes, Instruments, and Systems 7 (01): [10.1117/1.jatis.7.1.011002] [Journal Article/Letter]

2020. "Unusually high CO abundance of the first active interstellar comet." Nature Astronomy [10.1038/s41550-020-1087-2] [Journal Article/Letter]

2019. "Millimeter/Submillimeter Spectroscopic Detection of Desorbed Ices: A New Technique in Laboratory Astrochemistry." The Journal of Physical Chemistry A 123 (40): 8702-8708 [10.1021/acs.jpca.9b04587] [Journal Article/Letter]

2019. "ALMA Autocorrelation Spectroscopy of Comets: The HCN/H13CN Ratio in C/2012 S1 (ISON)." The Astrophysical Journal 870 (2): L26 [10.3847/2041-8213/aafb05] [Journal Article/Letter]

2018. "Solar system science with the Wide-Field Infrared Survey Telescope." Journal of Astronomical Telescopes, Instruments, and Systems 4 (03): 1 [10.1117/1.jatis.4.3.034003] [Journal Article/Letter]

2018. "The CAESAR New Frontiers Comet Sample Return Mission." Microscopy and Microanalysis 24 (S1): 2104-2105 [10.1017/s1431927618011005] [Journal Article/Letter]

2018. "The Origins Space Telescope." Nature Astronomy 2 (8): 596-599 [10.1038/s41550-018-0540-y] [Journal Article/Letter]

2017. "Measuring molecular abundances in comet C/2014 Q2 (Lovejoy) using the APEX telescope." Monthly Notices of the Royal Astronomical Society 474 (1): 1099-1107 [10.1093/mnras/stx2802] [Journal Article/Letter]

2017. "ALMA Mapping of Rapid Gas and Dust Variations in Comet C/2012 S1 (ISON):New Insights into the Origin of Cometary HNC." The Astrophysical Journal 838 (2): 147 [10.3847/1538-4357/aa6590] [Journal Article/Letter]

2017. "Nucleosynthesis in AGB stars traced by oxygen isotopic ratios." Astronomy & Astrophysics 600 A71 [10.1051/0004-6361/201629195] [Journal Article/Letter]

2017. "JCMT Spectral and Continuum Imaging of Comet 252P/LINEAR." The Astronomical Journal 153 (4): 169 [10.3847/1538-3881/aa6440] [Journal Article/Letter]

2017. "Thermal Physics of the Inner Coma: ALMA Studies of the Methanol Distribution and Excitation in Comet C/2012 K1 (PanSTARRS)." The Astrophysical Journal 837 (2): 177 [10.3847/1538-4357/aa6211] [Journal Article/Letter]

2017. "Cine: Line excitation by infrared fluorescence in cometary atmospheres." The Journal of Open Source Software 2 (11): 182 [10.21105/joss.00182] [Journal Article/Letter]

2017. "Pathways to Meteoritic Glycine and Methylamine." ACS Earth and Space Chemistry 1 (1): 3-13 [Full Text] [10.1021/acsearthspacechem.6b00014] [Journal Article/Letter]

2016. "Catastrophic Disruption of Comet ISON." The Astrophysical Journal 831 (2): 207 [Journal Article/Letter]

2016. "On the nature of the enigmatic object IRAS 19312+1950: “A rare phase of massive star formation?." The Astrophysical Journal 828 (1): 51 [10.3847/0004-637x/828/1/51] [Journal Article/Letter]

2016. "The Space High Angular Resolution Probe for the Infrared (SHARP-IR)." Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave [10.1117/12.2231790] [Proceedings]

2016. "The Far-Infrared Surveyor Mission study: paper I, the genesis." Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave [10.1117/12.2240456] [Proceedings]

2016. "Isotopic ratios of H, C, N, O, and S in comets C/2012 F6 (Lemmon) and C/2014 Q2 (Lovejoy)." Astronomy & Astrophysics 589 (A): 11 [10.1051/0004-6361/201528041] [Journal Article/Letter]

2016. "Solar System Observations with theJames Webb Space Telescope." Publications of the Astronomical Society of the Pacific 128 (960): 025004 [10.1088/1538-3873/128/960/025004] [Journal Article/Letter]

2016. "Observing Planetary Rings and Small Satellites with theJames Webb Space Telescope: Science Justification and Observation Requirements." Publications of the Astronomical Society of the Pacific 128 (959): 018008 [10.1088/1538-3873/128/959/018008] [Journal Article/Letter]

2016. "TheJames Webb Space Telescope’s Plan for Operations and Instrument Capabilities for Observations in the Solar System." Publications of the Astronomical Society of the Pacific 128 (959): 018001 [10.1088/1538-3873/128/959/018001] [Journal Article/Letter]

2016. "James Webb Space Telescope Observations of Stellar Occultations by Solar System Bodies and Rings." Publications of the Astronomical Society of the Pacific 128 (1): 018011 [10.1088/1538-3873/128/959/018011] [Journal Article/Letter]

2016. "Unique Spectroscopy and Imaging of Mars with the James Webb Space Telescope." Publications of the Astronomical Society of the Pacific 128 (1): 018004 [10.1088/1538-3873/128/959/018004] [Journal Article/Letter]

2015. "Ethyl alcohol and sugar in comet C/2014 Q2 (Lovejoy)." Science Advances 1 (9): e1500863-e1500863 [10.1126/sciadv.1500863] [Journal Article/Letter]

2015. "Measuring the Distribution and Excitation of Cometary CH3OH Using ALMA." Proceedings of the International Astronomical Union 11 (A29A): 233-236 [10.1017/s1743921316002957] [Journal Article/Letter]

2015. "15N fractionation in star-forming regions and Solar System objects." Proceedings of the International Astronomical Union 11 (A29A): 271-274 [10.1017/s1743921316003033] [Journal Article/Letter]

2015. "The Composition of the Protosolar Disk and the Formation Conditions for Comets." Space Science Reviews 197 (1-4): 151-190 [10.1007/s11214-015-0167-6] [Journal Article/Letter]

2015. "THE EVOLUTION OF VOLATILE PRODUCTION IN COMET C/2009 P1 (GARRADD) DURING ITS 2011–2012 APPARITION." The Astrophysical Journal 807 (1): 19 [10.1088/0004-637x/807/1/19] [Journal Article/Letter]

2015. "Cometary Isotopic Measurements." Space Science Reviews 197 (1-4): 47-83 [10.1007/s11214-015-0156-9] [Journal Article/Letter]

2014. "ERRATUM: “MAPPING THE RELEASE OF VOLATILES IN THE INNER COMAE OF COMETS C/2012 F6 (LEMMON) AND C/2012 S1 (ISON) USING THE ATACAMA LARGE MILLIMETER/SUBMILLIMETER ARRAY” (2014, ApJ, 792, L2)." The Astrophysical Journal 797 (1): L11 [10.1088/2041-8205/797/1/l11] [Journal Article/Letter]

2014. "GROUND-BASED MULTIWAVELENGTH OBSERVATIONS OF COMET 103P/HARTLEY 2." The Astrophysical Journal 794 (1): 1 [10.1088/0004-637x/794/1/1] [Journal Article/Letter]

2014. "Searches for HCl and HF in comets 103P/Hartley 2 and C/2009 P1 (Garradd) with theHerschelSpace Observatory." Astronomy & Astrophysics 562 A5 [10.1051/0004-6361/201322939] [Journal Article/Letter]

2014. "Mapping the release of volatiles in the inner comae of comets C/2012 F6 (Lemmon) and C/2012 S1 (ISON) using the Atacama Large Millimeter/Submillimeter Array." ApJ 792 L2 [Journal Article/Letter]

2013. "Isotopic and chemical variation of organic nanoglobules in primitive meteorites." Meteoritics & Planetary Science 48 (5): 904-928 [10.1111/maps.12109] [Journal Article/Letter]

2012. "Nucleobases and Prebiotic Molecules in Organic Residues Produced from the Ultraviolet Photo-Irradiation of Pyrimidine in NH3 and H2O+NH3 Ices." Astrobiology 12 (4): 295-314 [10.1089/ast.2011.0726] [Journal Article/Letter]

2012. "Isotopic Anomalies in Primitive Solar System Matter: Spin-state-dependent Fractionation of Nitrogen and Deuterium in Interstellar Clouds." ApJ 757 L11 [Journal Article/Letter]

2011. "XANES analysis of organic residues produced from the UV irradiation of astrophysical ice analogs." Advances in Space Research 48 (6): 1126-1135 [10.1016/j.asr.2011.05.020] [Journal Article/Letter]

2011. "EPOXI : COMET 103P/HARTLEY 2 OBSERVATIONS FROM A WORLDWIDE CAMPAIGN." The Astrophysical Journal 734 (1): L1 [10.1088/2041-8205/734/1/l1] [Journal Article/Letter]

2010. "The mid-infrared transmission spectra of multiple stones from the Almahata Sitta meteorite." Meteoritics & Planetary Science 45 (10-11): 1821-1835 [10.1111/j.1945-5100.2010.001096.x] [Journal Article/Letter]

2010. "Mineralogy and petrography of the Almahata Sitta ureilite." Meteoritics & Planetary Science 45 (10-11): 1618-1637 [10.1111/j.1945-5100.2010.01128.x] [Journal Article/Letter]

2010. "THE ARIZONA RADIO OBSERVATORY 1 mm SPECTRAL SURVEY OF IRC +10216 AND VY CANIS MAJORIS (215–285 GHz)." The Astrophysical Journal Supplement Series 190 (2): 348-417 [10.1088/0067-0049/190/2/348] [Journal Article/Letter]

2010. "Mechanism for the abiotic synthesis of uracil via UV-induced oxidation of pyrimidine in pure H2O ices under astrophysical conditions." The Journal of Chemical Physics 133 (10): 104303 [10.1063/1.3478524] [Journal Article/Letter]

2010. "COMPARATIVE SPECTRA OF OXYGEN-RICH VERSUS CARBON-RICH CIRCUMSTELLAR SHELLS: VY CANIS MAJORIS AND IRC +10216 AT 215-285 GHz." The Astrophysical Journal 720 (1): L102-L107 [10.1088/2041-8205/720/1/l102] [Journal Article/Letter]

2009. "MOLECULAR SURVIVAL IN EVOLVED PLANETARY NEBULAE: DETECTION OF H2CO, c-C3H2, AND C2H IN THE HELIX." The Astrophysical Journal 704 (2): L108-L112 [10.1088/0004-637x/704/2/l108] [Journal Article/Letter]

2009. "CARBON CHEMISTRY IN THE ENVELOPE OF VY CANIS MAJORIS: IMPLICATIONS FOR OXYGEN-RICH EVOLVED STARS." The Astrophysical Journal 695 (2): 1604-1613 [10.1088/0004-637x/695/2/1604] [Journal Article/Letter]

2009. "The impact and recovery of asteroid 2008 TC3." Nature 458 (7237): 485-488 [10.1038/nature07920] [Journal Article/Letter]

2009. "Formation of Uracil from the Ultraviolet Photo-Irradiation of Pyrimidine in Pure H2O Ices." ASTROBIOLOGY 9 (7): [10.1089=ast.2008.0324] [Journal Article/Letter]

2009. "Formation of uracil from the UV photo-irradiation of pyrimidine in pure H2O ices." Astrobiology 9 683-695 [Full Text] [10.1089/ast.2008.0324] [Journal Article/Letter]

2009. "A multi-wavelength study of parent volatile abundances in Comet C/2006 M4 (SWAN)." Icarus 203 589 [Full Text] [10.1016/j.icarus.2009.05.026] [Journal Article/Letter]

2008. "The Distribution, Excitation, and Formation of Cometary Molecules: Methanol, Methyl Cyanide, and Ethylene Glycol." The Astrophysical Journal 689 (1): 613-621 [10.1086/592242] [Journal Article/Letter]

2008. "CIRCUMSTELLAR12C/13C ISOTOPE RATIOS FROM MILLIMETER OBSERVATIONS OF CN AND CO: MIXING IN CARBON- AND OXYGEN-RICH STARS." The Astrophysical Journal 690 (1): 837-849 [10.1088/0004-637x/690/1/837] [Journal Article/Letter]

2008. "Constraining Phosphorus Chemistry in Carbon‐ and Oxygen‐Rich Circumstellar Envelopes: Observations of PN, HCP, and CP." The Astrophysical Journal 684 (1): 618-625 [10.1086/589135] [Journal Article/Letter]

2008. "The 1 mm spectrum of VY Canis Majoris: Chemistry in an O-rich envelope." Proceedings of the International Astronomical Union 4 (S251): 171-172 [10.1017/s1743921308021492] [Journal Article/Letter]

2007. "Oxygen-rich Mass Loss with a Pinch of Salt: NaCl in the Circumstellar Gas of IK Tauri and VY Canis Majoris." The Astrophysical Journal 668 (2): L131-L134 [10.1086/522928] [Journal Article/Letter]

2007. "Chemical complexity in the winds of the oxygen-rich supergiant star VY Canis Majoris." Nature 447 (7148): 1094-1097 [10.1038/nature05905] [Journal Article/Letter]

2006. "Formaldehyde in Comets C/1995 O1 (Hale‐Bopp), C/2002 T7 (LINEAR), and C/2001 Q4 (NEAT): Investigating the Cometary Origin of H2CO." The Astrophysical Journal 649 (2): 1169-1177 [10.1086/506501] [Journal Article/Letter]

2006. "Carbon Isotope Ratios In Circumstellar Envelopes: Constraints For Nucleosynthesis And Galactic Chemical Evolution." AIP Conference Proceedings [10.1063/1.2359552] [Proceedings]

2005. "The12C/13C Isotope Gradient Derived from Millimeter Transitions of CN: The Case for Galactic Chemical Evolution." The Astrophysical Journal 634 (2): 1126-1132 [10.1086/497123] [Journal Article/Letter]

2004. "HCO+Observations toward Comet Hale‐Bopp (C/1995 O1): Ion‐Molecule Chemistry and Evidence for a Volatile Secondary Source." The Astrophysical Journal 615 (2): 1054-1062 [10.1086/424701] [Journal Article/Letter]

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