i. Conferences: Invited Reviews, Keynote Talks, Summaries (since 1995)

• November 2023: Meeting of all NASA SAT/APRA PIs at UV-visible-NIR wavelengths organized by NASA, Tucson, AZ (invited talk on “Recent Advances in Astrophotonics: Sophisticated Spectrometers and Nulling Interferometers on a Chip")

• July 2023: International conference entitled "New Views on Feedback & the Baryon Cycle in Galaxies", Melbourne, Australia (invited kick-off talk on "Cool Outflows and their Implications")

• June 2023: CLEO/Europe-EQEC 2023, Joint Session II entitled "The photonic yield in astronomy", Munich, Germany (invited kick-off talk on "Why Photonic Technologies are Beneficial to Astronomical Instrumentation")

• May 2023: International conference entitled "AGN winds on the Chesapeake", Easton, Maryland (contributed talk on "Q-3D: A JWST Early Release Science Program to Study Quasar Feedback around Cosmic Noon")

• January 2023: Meeting of all NSF/ATI PIs organized by the National Science Foundation, Seatle, WA (invited talk on "Near-Infrared Photonic Spectrometers with a Spectral Resolution of 100,000" - virtual presentation via Zoom)

• October 2022: Conference entitled "Signatures of AGN Feedback: The Post-SOFIA Era", Mountain View, California (invited talk entitled "Galactic Winds from IR" - virtual presentation via Webex)

• June 2022: Conference entitled "Multiphase AGN Feeding & Feedback II", Sesto, Italy (invited talk entitled "AGN Outflows in the Local Universe: From the Central Engine to the Circumnuclear Medium")

• October 2021: Meeting of all NSF/ATI PIs organized by the National Science Foundation, Alexandria, VA (invited talk on "Photonic Filters and Spectrometers for Ground-based Near-Infrared Astronomy" - virtual presentation via Zoom)

• July 2021: Symposium S10 entitled "The many faces of black hole accretion" as part of the annual meeting of the European Astronomical Society (invited review on "AGN Feedback: From the Central Engine to the Host Galaxy and Beyond" - virtual presentation via Zoom)

• January 2021: Conference entitled "CON-quest workshop on the Feeding and Feedback of Obscured Activity", Chalmers University, Sweden (invited talk on "A Holistic View of Cool Outflows in Obscured Nuclei" - virtual presentation via Zoom)

• May 2020: Conference entitled "Photonics North", Niagara Falls, Canada (invited talk on "Recent Advances in Astrophotonics: Integrated Spectrometers and Photonic Filters" - virtual presentation via Zoom)

• January 2020: Invitation-only workshop entitled "Extreme Galatic Nuclear Activity: Ultraluminous Starbursts and AGN" in honor of David Sanders' 30 years in Hawaii, Honolulu (talk on "Cool Winds in Ultraluminous Infrared Galaxies")

• December 2019: Conference entitled "Australian and New Zealand Conference on Optics and Photonics 2019" (ANZCOP 2019), special session on astrophotonics, organized by the Australian Optical Society and SPIE, Melbourne, Australia (invited talk on "Recent Advances in Astrophotonics: Integrated Spectrometers and Photonics Filters")

• September-October 2019: Meeting organized by the NSF and NASA entitled "Joint NASA/NSF 2018 UV-Vis PI Program Review Meeting", Washington, DC (invited talk on "Miniaturization: The Next Wave in Astronomical Instrumentation")

• September 2018: Conference entitled "15th Potsdam Thinkshop: The role of feedback in galaxy formation: from small-scale winds to large-scale outflows", Potsdam, Germany (invited talk titled "An Observational Perspective on Galactic Winds and the Circumgalactic Medium" to kick off the meeting)

• July 2018: Conference entitled "Multiphase AGN Feeding & Feedback", Sesto, Italy (invited talk entitled "A Holistic View of Quasar Feedback" to kick off the meeting)

• June 2018: Conference entitled "Bubbles Big & Small. From supernovae & the Fermi bubble to the circumgalactic medium", Bangalore, India (invited talk on "Bubbles, Outflows, and the Circumgalactic Medium" to kick off the meeting)

• April 2018: Conference entitled "A Star Was Born" to celebrate the scientific accomplishments of Dr. Michael Dopita, Abbazia di Spineto, Italy (invited talk on "Quasar Feedback and CGM in Star-Forming Galaxies")

• January 2018: JWST Town Hall, 231st AAS meeting, Washington, DC (invited talk on ERS program #1335 "Q-3D: Imaging Spectroscopy of Quasar Hosts with JWST Analyzed with a Powerful New PSF Decomposition and Analysis Package")

• July 2017: Conference entitled "In & Out. What rules the Baryon Cycle?", Munich Institute for Astro- and Particle Physics (MIAPP), Garching, Germany (invited review on "Quasar-Driven Outflows")

• July 2017: Workshop entitled "Behind the Curtains of Dust", Sexten Center for Astrophysics, Sesto, Italy (invited review on "Multi-Phase Outflows in ULIRGs")

• June 2017: Symposium #6 on "Physics and demography of AGN and starburst winds", European Week of Astronomy and Space Science (EWASS), Prague, Czech Republic (invited review on "Cool Neutral and Molecular Outflows in Gas-Rich Galaxies")

• June 2017: Conference entitled "What Matter(s) Around Galaxies", Durham, United Kingdom (invited review on "The Impact of Quasar-Mode Feedback on the Ecosystems of Galaxies")

• May 2017: Workshop entitled "AGN Driven Winds", Haifa, Israel (invited review on "Cool Neutral and Molecular Outflows")

• September 2016: Conference entitled "Crossing the Rubicon: The fate of gas flows in galaxies", Santarcangelo di Romagna, Italy (invited review on "The Impact of Stellar Feedback and Outflows on the Ecosystems of Galaxies")

• August 2016: Conference on "CLOUDY: Emission Lines in Astrophysics, from Gaseous Nebulae to Quasars" in honor of Prof. Gary Ferland, Mexico City, Mexico (invited review on "Multi-wavelength Spectroscopy of AGN and Quasars")

• July 2016: Symposium #12 on "Stellar and AGN feedback in galaxies: a multi-wavelength perspective of outflows", European Week of Astronomy and Space Science (EWASS), Athens, Greece (invited review on "Stellar Feedback in Galaxies")

• April 2016: Conference on "The Interplay between Local and Global Processes in Galaxies", Cozumel, Mexico (invited review on "Star Formation Quenching")

• February 2016: Conference on "Sweeping Galaxies Clear: Cold Molecular Outflows as Drivers of Galaxy Evolution", Sesto, Italy (invited talk on "The Role of Quasars in Driving the Cold Gas out of Galaxies")

• December 2015: Conference on the "U.S. Radio/Millimeter/Submillimeter Science Futures in the 2020s", Chicago, Illinois (invited talk on "Observations of Gas Flows In and Out of Galaxies"}

• June 2015: Conference on "Black Hole Accretion and AGN Feedback", Shanghai, China (invited talk on "Evidence for Star Formation and AGN Feedback in the Dust and Cold Gas of Galaxies")

• March 2015: Conference on "Unveiling the AGN - Galaxy Evolution Connection", Puerto Varas, Chile (invited talk on "Evidence for Star Formation and AGN Feedback in the Dust and Molecular Gas of Galaxies")

• July 2014: Workshop on "AGN versus Star Formation", Durham, England (invited talk on "Powerful Neutral Atomic and Molecular Galactic Winds in Nearby Active Galaxies")

• July 2014: Workshop on "Behind the curtain of dust - the molecular view of activity in (U)LIRGs", Sesto Centre for Astrophysics, Balzano, Italy (invited talk on "Warm and Cold Molecular Winds in ULIRGs")

• June 2014: Conference on "Powerful AGN and their Host Galaxies Across Cosmic Time", Port Douglas, Australia (invited talk on "Powerful Neutral Atomic and Molecular Galactic Winds in Nearby Active Galaxies")

• April 2014: Conference on "Fire Down Below: The Impact of Feedback on Star and Galaxy Formation", Kavli Institute of Theoretical Physics, Santa Barbara, California (invited talk on "Powerful Neutral Atomic and Molecular Winds in Galaxies")

• October 2013: Conference on "Multiwavelength AGN Surveys and Studies", Yerevan, Armenia (invited talk on "AGN Feedback, Near and Far")

• June 2013: Conference on "Galaxies vs SMBH", Castellammare del Golfo, Sicily, Italy (invited talk on "Powerful Molecular Outflows in Nearby Active Galaxies")

• June 2013: Conference on "Galactic Winds: Near and Far", Ringberg meeting, Ringberg Castle, Germany (invited talk on "New Herschel Results on Molecular Winds and Multiwavelength Comparisons")

• April 2013: Conference titled "FIRSED2013 - the FIR-submm SEDs of galaxies with and without active nucleus", Amsterdam, Netherlands (invited talk on "ULIRG - QSO Connection")

• March 2013: Conference on "Infrared and Submillimeter Probes of Gas in Galaxies: From the Milky Way to the Distant Universe", Pasadena, California (contributed talk on "Powerful Molecular Outflows in Nearby Galaxies")

• October 2012: Conference on "Frontiers in Star Formation" in honor of Prof. Richard Larson, Yale University, New Haven, Connecticutt (invited talk on galactic winds and outflows)

• May 2012: Workshop on "The Physics and Evolution of Active Black Holes", Technion, Haifa, Israel (invited talks on "Galactic Winds: What, Who, and How?" and "Galaxy Interactions: Do they play a role in triggering Local AGN?")

• May 2012: STScI 2012 Symposium on "Gas Flows in Galaxies", Baltimore, MD (invited talk on "Outflows in Molecules")

• March 2012: NRAO-NAASC 2012 Workshop on "Outflows, Winds and Jets: From Young Stars to Supermassive Black Holes", NRAO, Charlottesville, Virginia (invited review on Observational Review of the Outflow Phenomena from Extragalactic Systems)

• October 2011: International conference "AGN Winds in Charleston", Charleston, South Carolina, (talk on Massive Neutral and Molecular Winds in Nearby Galaxies)

• September 2011: European Space Astronomy Centre (ESAC) conference on "The Starburst-AGN Connection under the Multiwavelength Limelight", ESAC, Villafranca del Castillo, Spain (invited talk on Galaxy Mergers, Ultraluminous Infrared, and Quasar Activity)

• August 2011: Astronomy at High Angular Resolution (AHAR11) conference on The Central kiloparsec in galactic nuclei in Bad Honnef, Germany (invited talk on The Latest Results from QUEST)

• June 2011: Ringberg Meeting on Star Formation in the Herschel Era, Tegernsee, Germany (invited talk on Starburst-Driven Feedback: Observational Perspective)

• February 2011: Mini-Symposium in honor of C. Dermer's E. O. Hulburt Science Award (invited talk)

• June 2010: Extreme Starbursts in the Local Universe, Granada, Spain (invited conference summary)

• July 2008: COSPAR, Montreal, Canada (invited talk on Galactic Winds)

• January 2008: Fabry-Perot Spectroscopy in Astronomy, Tenerife, Canary Islands (invited talk on The Maryland-Magellan Tunable Filter)

• October 2007: Second Magellan Science Symposium, CfA/Harvard (invited talk on Science with the Maryland-Magellan Tunable Filter)

• October 2007: W. G. Mathews & P. Bodenheimer Retirement Symposium (invited review talk on Galactic Winds)

• August 2007: VLTI Summer School on Active Galactic Nuclei at the highest resolution: Theory and Observation, Torun, Poland (four invited lectures on the Starburst-AGN Connection, Ultraluminous IRAS Galaxies, Feedback Processes, and Elemental Abundances as Tracers of Star Formation)

• August 2007: Legacy of Multi-Wavelength Surveys, Xining, China (invited review on QUEST: Quasar - ULIRG Evolution Study)

• August 2007: Prof. D. E. Osterbrock Memorial Symposium, Santa Cruz, CA (invited review on Spectral Classificaiton of Emission-Line Galaxies)

• August 2006: New Cosmology Results from the Spitzer Space Telescope, IAU Joint Discussion #15, Prague, Czech Republic (invited talk on ULIRGs in the Cosmological Context)

• June 2006: Mapping the Galaxy and Nearby Galaxies in honor of Prof. Sofue (contributed talk on Galactic Winds)

• June 2006: Dust and Gas in ULIRGs: Tracing Star Formation and Black Hole Growth at the Centers of Ultraluminous Infrared Galaxies, Ithaca, New York (invited review on ULIRG Evolution)

• November 2005: Infrared Diagnostics of Galaxy Evolution, Pasadena, California (contributed talk on QUEST: Quasar / ULIRG Evolution Study with Spitzer/IRS)

• August 2005: International workshop on QSO Hosts and Environments at the Lorentz Center in Leiden, Netherlands (invited review on The Hosts and Environments of Local ULIRGs and QSOs)

• August 2005: International conference on Extreme Starburst: Near and Far in Lijiang, China (invited review on Local ULIRGs and QSOs)

• November 2004: First SST Science meeting on New Views of the Cosmos, Pasadena, California (contributed talk on Evolution of Activity in Massive Gas-Rich Mergers)

• November 2004: Ringberg meeting on The Role of Mergers and Feedback in Galaxy Evolution, Germany. (invited review on AGN-Star Formation Connection in Local Powerful Starbursts)

• July 2004: International conference on Astrophysics of Gaseous Nebulae and Active Galactic Nuclei in honor of D. E. Osterbrock's 80th anniversary, Santa Cruz, California (invited review on Unification of Radio-Quiet AGN: An Update)

• June 2004: Dwingeloo meeting on Extra-planar Gas, Netherlands (invited review on Galactic Winds in Starburst and Active Galaxies)

• January 2004: II International Workshop on Science with the GTC: Science with GTC 1st-light Instruments and the LMT, Mexico City, Mexico (invited review on Extragalactic Science with Tunable Filters)

• December 2003: International 2003 Guillermo Haro conference on Multiwavelength AGN Surveys (Keynote review on Unification of Radio-Quiet AGNs: Successes and Failures)

• November 2003: International conference in Sydney, Australia in honor of R. B. Tully 60th Anniversary (invited talk on Galactic Winds and the Missing Baryons)

• July 2003: IAU Symposium #217 ``Recycling Intergalactic and Interstellar Matter'', Sydney, Australia (invited review on Multiwavelength Observations of Galactic Winds)

• June 2003: International conference on the ``Neutral ISM in Starburst Galaxies'', Maarstrand, Sweden (invited review on Galactic Winds: Near and Far)

• July 2002: International conference on ``Active Galactic Nuclei: from Central Engine to Host Galaxy'', meeting held in Meudon, France, July 23-27, 2002 (one of two keynote reviews; The AGN Paradigm: Radio-Quiet Objects)

• December 2001: International conference on "Galaxies: The Third Dimension" held on Cozumel, Mexico (invited review talk, Fabry-Perot Survey of Normal and Active Galaxies)

• June 2001: IAU Colloquium #184 on ``AGN Surveys'' held in Yerevan, Armenia (invited review talk, Spectroscopic Diagnostics for IR-Selected AGNs)

• April 2001: Workshop on "Extragalactic Gas at Low Redshift" in honor of Dr. Ray Weymann, Las Campanas Observatories, Pasadena, CA (invited talk, Warm Ionized Gas on the Outskirts of Active and Star-Forming Galaxies)

• January 2001: International workshop on "QSO Hosts and their Environments" held in Granada, Spain (contributed talk, The QSO -- Ultraluminous Infrared Galaxies Connection)

• November 2000: International conference on "Emission Lines from Jet Flows" held on Isla Mujeres, Mexico (invited talk, New Results from a Survey of Galactic Outflows in Nearby Active Galactic Nuclei)

• September 2000: Ringberg meeting on "Starbursts: Near and Far" (invited discussion leader on the Starburst-AGN Connection)

• August 2000: International workshop on "Environments of Galaxies" held in Birmingham, UK (invited review talk on The Impact of Starburst-Driven Winds)

• March 1999: International Conference on ``Imaging the Universe in Three Dimensions: Astrophysics with Advanced Multi-Wavelength Imaging Devices'', Walnut Creek, California (invited highlight talk, Fabry-Perot Imaging Spectroscopy of Starburst and AGN Winds)

• March 1999: Annual conference of the University of Montreal and University Laval Joint Astrophyscis Research Center, Quebec City, Canada (one of two invited `keynote speakers', Ultraluminous Infrared Galaxies and the Origin of Nuclear Activity).

• September 1998: Annual Ringberg Meeting on ``Ultraluminous Infrared Galaxies'' (invited review talk, Highlights: Optical/NIR Spectroscopy of Ultraluminous Infrared Galaxies)

• April 1998: Annual APS Meeting, Columbus, Ohio (invited review talk, Ultraluminous Infrared Galaxies and the Origin of Nuclear Activity)

• August 1997: IAU Symposium 186 ``Galaxy Interactions at Low and High Redshift'' (invited talk, Spectroscopy of Luminous Infrared Galaxies)

• March 1997: XVIIth Moriond Astrophysics Meeting, ``Extragalactic Astronomy in the Infrared'', Les Arcs, Savoie, France (invited review talk, Spectroscopy of Luminous Infrared Galaxies)

• June 1996: Aspen Summer Astrophysics Workshop on ``Galaxy Interactions at Low and High Redshifts'', Aspen, Colorado (invited review talk, 30 minutes).

• November 1995: WAAM meeting, Naval Research Lab., Washington, DC. (invited talk, A Look through the Obscuring Torus of Active Galactic Nuclei)

• May 1995: International conference on ``Three-Dimensional Spectroscopy'', Marseille, France (invited talk, Fabry-Perot Observations of Active and Starburst Galaxies)

ii. Invited Colloquia & Seminars (since 1995)

• May 2023: CREOL, College of Optics and Photonics, University of Central Florida, (Colloquium: Recent Advances in Astrophotonics: Sophisticated Filters, Spectrometers, and Interferometers on a Chip)

• September 2022: Department of Physics, George Washington University, Washington, DC (guest lecture on Chemical Evolution of Galaxies for course AP 2131 taught by Prof. Chryssa Kouveliotou)

• July 2022: Max Planck Institute for Astrophysics (MPA), Garching, Germany (special seminar series, Galactic Winds: From the Central Engine to the Circumgalactic Medium)

• April 2021: NASA Jet Propulsion Laboratory, Pasadena (Section 389 seminar: Recent Advances in Astrophotonics: Integrated Spectrometers and Photonics Filters - virtual presentation via Zoom, jointly with former PhD student Pradip Gatkine now at Caltech)

• March 2021: Astronomy Sector of the Department of Physics, National and Kapodistrian University of Athens, Athens, Greece (Colloquium: The Cool Side of Galactic Winds - virtual presentation via Zoom)

• October 2020: Department of Physics, Virginia Tech, Blacksburg, Virginia (Colloquium: The Cool Side of Galactic Winds - virtual presentation via Zoom)

• March 2020: Department of Physics, University of Maryland, College Park, Maryland (Space and Cosmic Ray Physics seminar: The Cool Side of Galactic Winds)

• October 2019: Johns Hopkins University / Space Telescope Science Institute, Baltimore, Maryland (JHU/STScI CAS Wine & Cheese 30-min seminar: Astrophotonics: The Next Wave in Astronomical Instrumentation)

• September 2019: Space Telescope Science Institute / Johns Hopkins University, Baltimore, Maryland (Joint Colloquium: Galactic Winds and the Circumgalactic Medium)

• September 2019: Space Telescope Science Institute, Baltimore, Maryland (Coffee talk: Astrophotonics: The Next Wave in Astronomical Instrumentation)

• June 2019: Astronomy Group, Department of Physics, Durham University, Durham, United Kingdom (Colloquium: Galactic Winds and the Circumgalactic Medium)

• May 2019: Institute of Astronomy and Kavli Institute for Cosmology Cambridge, University of Cambridge, Cambridge, United Kingdom (30-min seminar: Astrophotonics: The Next Wave in Astronomical Instrumentation)

• March 2019: Astrophysics Research Institute, Liverpool John Moores University, Liverpool, United Kingdom (Colloquium: Galactic Winds and the Circumgalactic Medium)

• February 2019: Institute of Astronomy and Kavli Institute for Cosmology Cambridge, University of Cambridge, Cambridge, United Kingdom (Kavli Lecture: Galactic Winds and the Circumgalactic Medium)

• February 2019: Kavli Institute for Cosmology Cambridge, University of Cambridge, Cambridge, United Kingdom (20-min seminar: The Source of Ionization of Quasar Winds)

• February 2019: Institute of Astronomy, University of Cambridge, Cambridge, United Kingdom (Discussion: Multi-scale Quasar-Driven Outflows)

• October 2018: Pennsylvania State University, State College, PA (Colloquium: The Cool Side of Galactic Winds)

• August 2018: Max-Planck Institute for Radioastronomy, Bonn, Germany (Colloquium: The Cool Side of Galactic Winds)

• March 2018: SOFIA Science Center, Mountain View, CA (Colloquium: The Cool Side of Galactic Winds)

• September 2016: University of Sydney, Australia (Astronomy colloquium: The Cool Side of Galactic Winds)

• September 2016: University of Sydney, Australia (Seminar: Astrophotonics @ Maryland)

• July 2016: MPE, Garching, Germany (IR Tea Talk; Mrk 231: The Nearest Laboratory to Study Quasar Feedback in Action, Slim Accretion Disks, but not Binary Black Holes)

• May 2016: University of Maryland, College Park, MD (CTC seminar on Mrk 231: The Nearest Laboratory to Study Quasar Feedback in Action, Slim Accretion Disks, but not Binary Black Holes)

• September 2015: Tufts University, Medford, MA (Colloquium on galactic winds)

• January 2015: The Ohio State University, Columbus, OH (Colloquium on galactic winds)

• April 2014: Naval Research Laboratory, Washington, DC (Colloquium on galactic winds)

• March 2014: University of Colorado, Boulder, Colorado (Colloquium on galactic winds)

• March 2014: Carnegie Observatories, Pasadena, California (Colloquium on galactic winds)

• January 2014: National Radio Astronomy Observatory, Socorro, New Mexico (Colloquium on galactic winds)

• January 2014: Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University, California (Colloquium on galactic winds)

• July 2013: MPE, Garching, Germany (IR Tea Talk; Cool Cores and Cooling Flows: Near and Far)

• July 2013: Sydney Institute for Astronomy, University of Sydney, Sydney, Australia (colloquium; Cool Cores and Cooling Flows: Near and Far)

• May 2013: Institute for Astronomy, Honolulu, Hawaii (colloquium on galactic winds)

• November 2012: MPE, Garching, Germany (tea talk on "Non-Herschel Science "Teasers" and Photonic OH Suppression")

• June 2012: NASA Goddard Space Flight Center, Greenbelt, Maryland (colloquium on galactic winds)

• April 2012: Invited NOVA lecturer at Nijmegen, Leiden, and Groningen, The Netherlands (a series of three colloquia on galactic winds)

• February 2012: Queen's University, Kingston, Ontario, Canada (colloquium)

• November 2011: University of Pennsylvania, Philadelphia, Pennsylvania (colloquium)

• February 2011: Boston University, Boston, Massachussetts (colloquium)

• April 2010: Maryland-Goddard Interaction Day, GSFC, Maryland (seminar)

• April 2010: George Mason University, Fairfax, Virginia (colloquium)

• March 2010: Catholic University of America, Washington, D.C. (colloquium)

• March 2010: Oxford University, Oxford England (BIPAC seminar)

• February 2010: University of Florida, Gainesville, Florida (colloquium)

• September 2009: University of Sydney, Sydney, Australia (colloquium)

• June 2009: INAF, Instituto di Radioastronomia, Bologna, Italy (colloquium)

• June 2009: MPIfR, Bonn, Germany (colloquium)

• June 2009: Astrophysical Institute, Potsdam, Germany (colloquium)

• June 2009: Ruhr-Universitat, Bochum, Germany (colloquium)

• May 2009: MPIA, Heidelberg, Germany (colloquium)

• May 2009: MPE, Garching, Germany (tea talk)

• March 2009: MPE/MPA/ESO, Garching, Germany (Munich Joint Astronomy colloqium)

• November 2008: Virginia Tech, Blacksburg, Virginia (colloquium)

• March 2008: Pontificia Universidad Catolica, Santiago, Chile (colloquium)

• January 2008: University of California, Riverside, CA (colloquium)

• March 2007: New Mexico State University, Las Cruces, NM (colloquium)

• September 2006: University of Virginia, Charlottesville, VA (colloquium)

• September 2005: Los Alamos National Laboratory, New Mexico (colloquium)

• July 2005: Astronomy Observatory Public Open House, College Park (popular seminar)

• February 2004: Naval Research Laboratory, D.C. (E.O. Hulbert Colloquium Series)

• November 2003: Observatories of the Carnegie Institution, Pasadena, CA (colloquium)

• November 2003: IPAC, Caltech, Pasadena, CA (lunch seminar)

• October 2003: Livermore National Laboratory, CA (colloquium)

• May 2003: University of California, Los Angeles, CA (colloquium)

• May 2003: University of California, Santa Barbara, CA (colloquium)

• April 2003: Observatories of the Carnegie Institution, Pasadena, CA (colloquium)

• April 2003: California Institute of Technology, Pasadena, CA (colloquium)

• April 2003: Ohio State University, Columbus, OH (colloquium)

• April 2003: University of Rochester, Rochester, NY (colloquium)

• November 2002: State University of New York, Stony Brook, NY (colloquium)

• May 2002: Astronomy Observatory Public Open House, College Park (popular seminar)

• November 2001: University of Maryland, College Park, Maryland (colloquium)

• October 2001: Kitt Peak National Observatory, Tucson, Arizona (lunch-time seminar)

• October 2001: University of Arizona, Tucson, Arizona (joint U. of Arizona/NOAO colloquium)

• May 2001: NASA Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics (colloquium)

• May 2001: Astronomy Observatory Public Open House, College Park (popular seminar)

• May 2001: University of Maryland, College Park, MD (lunch-time seminar, NGC 3079: The Mother of All Galaxy-Scale Windblown Superbubbles - Giant "Mushroom Cloud" in Action!)

• February 2001: University of Texas, Austin, Texas (lunch-time seminar)

• February 2001: University of Texas, Austin, Texas (colloquium)

• June 2000: Astronomy Observatory Public Open House, College Park (popular seminar)

• March 2000: University of California, Santa Cruz, California (colloquium)

• March 2000: University of Virginia, Charlottesville, Virginia (colloquium)

• January 2000: Anglo-Australian Observatory, Australia (colloquium)

• October 1999: MIT (colloquium)

• June 1999: Astronomy Observatory Public Open House, College Park (popular seminar)

• January 1999: Hertzberg Institute of Astrophysics, Canada (colloquium)

• January 1999: University of British Columbia, Canada (colloquium)

• June 1998: Astronomy Observatory Public Open House, College Park (popular seminar)

• June 1997: Astronomy Observatory Public Open House, College Park (popular seminar)

• June 1997: UC Santa Cruz, Santa Cruz, California (colloquium)

• April 1997: Space Telescope Science Institute, Baltimore, Maryland (colloquium)

• February 1997: Goddard Space Flight Center, High-Energy Astrophysics Division, Greenbelt, Maryland (colloquium)

• November 1996: University of Montreal, Montreal, Canada (colloquium)

• November 1996: University of Illinois, Urbana-Champaign, Illinois (colloquium)

• November 1996: University of Virginia, Charlottesville, Virginia (colloquium)

• May 1996: University of Maryland, College Park (seminar on "Near-Infrared Spectroscopy of Active Galaxies")

• March 1996: Astronomy Observatory Public Open House, College Park (popular seminar)

• February 1995: New Mexico State University, Las Cruces, New Mexico (colloquium)

• January 1995: Universite Laval, Quebec, Canada (colloquium)

• January 1995: University of Toronto, Toronto, Canada (colloquium)