KMap
Dr. Swindle has spent most of his career using measurements of the noble gases in extraterrestrial materials (lunar samples and meteorites) to study the evolution of the solar system. Past research projects have included performing Ar-40/Ar-39 dating of shocked lunar samples and meteorites, to study the timing of impacts in the inner Solar system; using I-129, and its decay product Xe-129, to study the timing of the formation of the earliest solids in the solar nebula; and working on developing techniques to use instruments on spacecraft to measure ages of planetary surfaces in situ. He is also active in working to develop new mission concepts.

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Courses
  • CSS
    Chemistry of the Solar System

  • TUHOD
    The Universe and Humanity: Origin and Destiny

  • LMFF
    Life on Mars in Fact and Fiction

  • M
    Mars

  • BEST
    Beyond the Earth in Space and Time

Grants
  • Funding agency logo
    Arizona Space Grant Consortium

    Principal Investigator (PI)

    2020

    $3.4M
    Active
  • Funding agency logo
    A Next-Generation Nanoscale Secondary Ion Mass Spectrometer for the Analysis of Planetary Materials

    Co-Investigator (COI)

    2020

    $2.4M
    Active
  • Funding agency logo
    MRI: Acquisition of a Noble Gas Multi-Collector Mass Spectrometer for Geochronology and Geochemistry Research

    Co-Investigator (COI)

    2018

    $1.1M
  • Funding agency logo
    Arizona Space Grant Training Grant Funding Extension: Opportunities in NASA STEM FY 2018-2019

    Principal Investigator (PI)

    2015

    $3.6M
  • Funding agency logo
    ASCENDing Further: Engaging More Students from Community Colleges in STEM Activities through Expansion of the Arizona Space Grant Consortium

    Principal Investigator (PI)

    2014

    $466.8K
  • Funding agency logo
    Inner Solar System Impact Processes: An integrated Analysis Using Extraterrestrial Samples, Astronomical Observations, and Modeling

    Principal Investigator (PI)

    2014

    $236.8K
  • Funding agency logo
    Noble Gas Based Studies of the History of the Inner Solar System

    Principal Investigator (PI)

    2013

    $382.0K
  • Funding agency logo
    Arizona Space Grant Consortium

    Principal Investigator (PI)

    2010

    $3.4M
  • Funding agency logo
    Lunar Greenhouse Prototype for Bioregenerative Life Support Systems

    Principal Investigator (PI)

    2010

    $336.0K
News
  • Economic impact of UArizona space sciences rivals that of Super Bowl

    2023

  • UArizona Moon Researchers Helped NASA Nail Apollo 12 Pinpoint Landing

    2019

  • Ion Beams and Atom Smashers: Secrets of Moon Rocks

    2019

  • From Points of Light to Worlds: UA Explores the Solar System

    2019

  • UA Expertise Key in Mapping Moon's Surface

    2019

  • UA Students Participate in First Global Planetary Defense Exercise

    2017

  • Bound for Bennu! OSIRIS-REx Launch Was 'Perfect'

    2016

  • Anticipation Builds for OSIRIS-REx Launch

    2016

  • Michael Drake's Dream Is Ready for Takeoff

    2016

  • UA's OSIRIS-REx Mission Speeds Toward Asteroid

    2016

  • 'The Martian' Food-Growing System: It's Here

    2015

  • Science Lecture Series to Explore Life in the Universe

    2015

  • Meteorites Date Moon-Forming Impact Event

    2015

  • Collaboration Deepens Between UA and Japan

    2015

  • UA Ranked Second in the Nation for Physical Sciences Research Funding

    2014

  • UA Scientists to Feature Prominently at Gathering

    2014

  • Top NASA Fellowship Winners Head to the UA to Pursue Their Research

    2014

  • Celebrating Apollo 11 – the UA’s Role in the First Manned Lunar Landing to Space Exploration Today

    2014

  • UA Strong Ally in NASA’s Call to Find Dangerous Asteroids

    2013

  • Employee Q&A: Lunar and Planetary Laboratory Director Timothy Swindle

    2012

  • Regents' Professor Michael J. Drake, 1946-2011

    2011

  • UA-Led Asteroid Mission Wins State Innovation Award

    2011

  • Biosphere 2 Dedicates Lectures to Memory of Michael J. Drake

    2011

  • Seven Graduate Students Win Prestigious NASA Fellowships

    2008

  • Engineering Alum Don Pettit Hunting Meteorites in Antarctica

    2007

  • NASA Awards Funding For Possible UA-Led Asteroid Sample-Return Mission

    2006

  • Faculty Awards 2005: Harold Larson Earns University Distinguished Professorship

    2005

  • Antarctica is a Hot Spot for UA Scientists Hunting Meteorites

    2005

  • UA Lunar Experts Testify Before Congressional Subcommittee

    2004

  • Faculty Awards 2004: Timothy Swindle Born to Teach

    2004

  • UA Grad Walks in Space Again Today

    2001

  • Lunar Meteorite Ages Strongly Support 'Lunar Cataclysm'

    2000

Publications (129)
Recent
  • Chelyabinsk's Impact Chronology: New Interpretations

    2020

  • Design Reference Mission (DRM) Scenarios for Small Bodies Enabled by Advances in Autonomy

    2020

  • Dating Key Lunar Events with Artemis

    2020

  • A Global Fireball Observatory

    2020

  • The potential science and engineering value of samples delivered to Earth by Mars sample return

    2019

  • Impact Chronology of Chelyabinsk

    2019

  • How Unique is Almahata Sitta and How Relevant is it to Bennu?

    2019

  • Six Million Years of Hydrothermal Activity at Chicxulub?

    2019

  • Evidence for multiple 4.0-3.7 Ga impact events within the Apollo 16 collection

    2019

  • Planetary Radar Astronomy with Ground-Based Astrophysical Assets

    2019

  • Planetary Science with Astrophysical Assets: Defining the Core Capabilities of Platforms

    2019

  • Introduction to the 2018 iMOST Study

    2018

  • Asteroidal Constraints on the Early Bombardment History of the Inner Solar System

    2018

  • Seeking Signs of Life on Mars: The Importance of Sedimentary Suites as Part of Mars Sample Return

    2018

  • Fractionated Martian Atmosphere \mdash The Case of the Nakhlites, Revisited with Experiments

    2018

  • Seeking Signs of Life on Mars: A Strategy for Selecting and Analyzing Returned Samples from Hydrothermal Deposits

    2018

  • Mineral Surface and Fluid Chemistry in Nakhlite Analog Water-Rock Reactions

    2018

  • The Relevance of Mars Samples to Planning for Potential Future In-Situ Resource Utilization

    2018

  • Curie: Constraining Solar System Bombardment Using In Situ Radiometric Dating

    2018

  • Potential High Priority Subaerial Environments for Mars Sample Return

    2018

  • The Importance of Returned Martian Samples for Constraining Potential Hazards to Future Human Exploration

    2018

  • The Importance of Mars Samples in Constraining the Geological and Geophysical Processes on Mars and the Nature of its Crust, Mantle, and Core

    2018

  • Constraining Our Understanding of the Actions and Effects of Martian Volatiles Through the Study of Returned Samples

    2018

  • Cosmic-Ray Exposure Ages of Brachinites and Brachinite-Like Achondrites

    2018

  • The Use of Returned Martian Samples to Evaluate the Possibility of Extant Life on Mars

    2018

  • Amazonian Hydrothermal Alteration: Comparing Nakhlite Secondary Mineralogy to Water-Rock Reaction Experiments

    2018

  • What Could be Learned About the Geochronology of Mars from Samples Collected by M-2020

    2018

  • Apollo 17 Lunar Impact Glasses: Ages Evaluated via Statistical and Compositional Studies

    2018

  • Seeking the Signs of Life: Assessing the Presence of Biosignatures in the Returned Sample Suite

    2018

  • 40Ar-39Ar Dating of Lunar Impact Melts - Searching for Imbrium

    2017

  • Image Restoration from Limited Data

    2017

  • Fractionated Noble Gases in Martian Meteorite ALH 84001 \mdash An Indicator for Water-Rock Interaction, or a Sample of Ancient Atmosphere?

    2017

  • Only Specific Lunar Impact Glasses Record Episodic Events on the Moon

    2017

  • Geochronology as a Framework for Planetary History Through 2050

    2017

  • Diagenesis on Mars: Insights Into Noble Gas Pathways and Newly Formed Mineral Assemblages from Long Term Experiments

    2017

  • Spacecraft Penetrator for Increasing Knowledge of NEOs (SPIKE)

    2017

  • The Effect of Partial Thermal Resetting on 40Ar-39Ar ``Plateaus''

    2017

  • The Gao-Guenie impact melt breccia{\mdash}Sampling a rapidly cooled impact melt dike on an H chondrite asteroid?

    2016

  • Fractionated (Martian) Noble Gases {\mdash} EFA, Experiments and Meteorites

    2016

  • Ar-Ar Ages of Brachinite and Brachinite-Like Achondrites

    2016

  • Noble Gas Fractionation in Hydrous Rock Alteration Under Diagenetic Pressure and Temperature Conditions

    2016

  • The Gao-Guenie (Burkina Faso) Impact Melt Breccia {\mdash} A Piece of an Impact Melt Injection Dike on an H-Chondrite Asteroid

    2016

  • Noble Gas Fractionation During Low Temperature Alteration {\mdash} An Experimental Approach

    2015

  • Dating the Moon-forming impact event with asteroidal meteorites

    2015

  • Argon diffusion in Apollo 16 impact glass spherules: Implications for $^{40}$Ar/$^{39}$Ar dating of lunar impact events

    2015

  • {Using Meteorites to Find the Age of the Moon-Forming Event}

    2014

  • {Ar-Ar Analysis of Chelyabinsk: Evidence for a Recent Impact}

    2014

  • {In Situ Geochronology on the Mars 2020 Rover with KArLE (Potassium-Argon Laser Experiment)}

    2014

  • {The Evolution of Giant Impact Ejecta and the Age of the Moon}

    2014

  • 40Ar/39Ar ages of impacts involving ordinary chondrite meteorites

    2014

  • Ancient porosity preserved in ordinary chondrites: Examining shock and compaction on young asteroids

    2014

  • {Comparing Meteorite and Spacecraft Noble Gas Measurements to Trace Processes in the Martian Crust and Atmosphere}

    2014

  • {Uranium-Lead Isotope Evidence in the Chelyabinsk LL5 Chondrite Meteorite for Ancient and Recent Thermal Events}

    2014

  • Volatile trapping in martian clathrates

    2013

  • Miller Range 05029: Evidence for a Large Impact on the L Chondrite Parent Body 4.5 Ga Large Meteorite Impacts and Planetary Evolution V

    2013

  • Source of potassium in shocked ordinary chondrites

    2012

  • Volatile analysis by pyrolysis of regolith for planetary resource exploration

    2012

  • Variability of diffusion of argon in albite, pyroxene, and olivine in shocked and unshocked samples

    2012

  • H/L chondrite LaPaz Icefield 031047 - A feather of Icarus?

    2011

  • Flattened chondrules in the LAP 04581 LL5 chondrite: Evidence for an oblique impact into LL3 material and subsequent collisional heating

    2011

  • The Ar-Ar age and petrology of Miller Range 05029: Evidence for a large impact in the very early solar system

    2010

  • VAPoR - Volatile Analysis by Pyrolysis of Regolith - an instrument for in situ detection of water, noble gases, and organics on the Moon

    2010

  • Impact cratering on the H chondrite parent asteroid

    2010

  • Apollo 17 regolith, 71501,262: A record of impact events and mare volcanism in lunar glasses

    2009

  • Evidence from sup 40 /sup Ar/ sup 39 /sup Ar ages of lunar impact glasses for an increase in the impact rate ∼800 Ma ago

    2009

  • Incorporation of argon, krypton and xenon into clathrates on Mars

    2009

  • sup 40 /sup Ar- sup 39 /sup Ar ages of H-chondrite impact melt breccias

    2009

  • Calibrating the martian cratering chronology: An in situ dating mission

    2008

  • An integrated approach to understanding Apollo 16 impact glasses: Chemistry, isotopes, and shape

    2007

  • sup 40 /sup Ar/ sup 39 /sup Ar dating of Apollo 12 regolith: Implications for the age of Copernicus and the source of nonmare materials

    2006

  • Geochemistry and sup 40 /sup Ar sup -39 /sup Ar geochronology of impact-melt clasts in feldspathic lunar meteorites: Implications for lunar bombardment history

    2005

  • Production of noble gases near the surface of Europa and the prospects for in situ chronology

    2005

  • Do comets have chondrules and CAIs? Evidence from the Leonid meteors

    2004

  • Mars chronology: Assessing techniques for quantifying surficial processes

    2004

  • Analyses of the chondritic meteorite Orvinio (H6): Insight into the origins and evolution of shocked H chondrite material

    2004

  • Planning for a Mars in situ sample preparation and distribution (SPAD) system

    2004

  • Exploring a possible shergottite source crater and calibrating the martian cratering chronology

    2004

  • sup 40 /sup Ar sup -39 /sup Ar studies of whole rock nakhlites: Evidence for the timing of formation and aqueous alteration on Mars

    2004

  • Composition of the first bulk melt sample from a volcanic region of Mars: Queen Alexandra Range 94201

    2003

  • Noble gases in the moon and meteorites: Radiogenic components and early volatile chronologies

    2002

  • Martian noble gases

    2002

  • Northwest Africa 482: A crystalline impact-melt breccia from the lunar highlands

    2002

  • Lunar prospector epithermal neutrons from impact craters and landing sites: Implications for surface maturity and hydrogen distribution

    2002

  • Radiocarbon on Titan

    2002

  • Alteration assemblages in Martian meteorites: Implications for near-surface processes

    2001

  • Liquid CO sub 2 /sub breakout and the formation of recent small gullies on Mars

    2001

  • Is release of martian atmosphere from polar clathrate the cause of nakhlite and ALH84001 Ar/Kr/Xe ratios?

    2001

  • Noble gases in iddingsite from the Lafayette meteorite: Evidence for liquid water on Mars in the last few hundred million years

    2000

  • Liquid CO2 breakout and the formation of recent small gullies on Mars

    2000

  • Argon-40/argon-39 analyses of samples from the Gardnos impact structure, Norway

    1999

  • Mineralogy, petrography, bulk chemical, iodine-xenon, and oxygen-isotopic compositions of dark inclusions in the reduced CV3 chondrite Efremovka

    1999

  • Polar endeavours

    1999

  • Estimated solar wind-implanted helium-3 distribution on the Moon

    1999

  • Noble gases, bulk chemistry, and petrography of olivine-rich achondrites Eagles Nest and Lewis Cliff 88763: Comparison to brachinites

    1998

  • Implications of iodine-xenon studies for the timing and location of secondary alteration

    1998

  • Formation and relative ages of maskelynite and carbonate in ALH84001

    1998

  • Lunar exploration: Water amongst the rock

    1998

  • In situ determination of iodine content and iodine-xenon systematics in silicates and troilite phases in chondrules from the LL3 chondrite Semarkona

    1998

  • Expected characteristics of cometary meteorites

    1998

  • The xenon isotopic composition of the primordial Martian atmosphere: Contributions from solar and fission components

    1997

  • Implications of small comets for the noble gas inventories of Earth and Mars

    1997

  • Cat Mountain: A meteoritic sample of an impact-melted asteroid regolith

    1996

  • Designing a robotic sampler to collect Moon rocks

    1996

  • Isothermal heating experiments on Bjurböle: Implications for the release mechanisms of radiogenic sup 129 /sup Xe

    1995

  • Noble gases in orthopyroxenite ALH84001: A different kind of martian meteorite with an atmospheric signature

    1995

  • {Book Review: Resources of near-earth space / U Arizona Press, 1993}

    1994

  • Fractionated Martian atmosphere in the nakhlites?

    1994

  • Noble gases in ancient asteroidal atmospheres

    1993

  • Early outgassing of Mars supported by differential water solubility of iodine and xenon

    1991

  • Iodine-xenon studies of petrographically and chemically characterized Chainpur chondrules

    1991

  • Iodine-xenon, chemical, and petrographie studies of Semarkona chondrules: Evidence for the timing of aqueous alteration

    1991

  • Noble gases in the howardites Bholghati and Kapoeta

    1990

  • Asteroidal regoliths: what we do not know

    1989

  • Extinct radionuclides

    1988

  • Nucleocosmochronology

    1988

  • I-Xe systematics in LL chondrites

    1988

  • Trapped noble gases in meteorites

    1988

  • Iodine-xenon studies of Allende inclusions: Eggs and the Pink Angel

    1988

  • Iodine-xenon dating

    1988

  • XENON AND OTHER NOBLE-GASES IN SHERGOTTITES

    1986

  • Support for the lunar cataclysm hypothesis from lunar meteorite impact melt ages

    1986

  • I-Xe studies of individual Allende chondrules

    1983

  • COSMOGENIC NEON FROM PROCOMPACTION IRRADIATION OF KAPOETA AND MURCHISON.

    1983

  • Shock disturbance of the I-Xe system.

    1982

  • I-Xe ages of individual Bjurbole chondrules.

    1982

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