Ridge Formation and De-Spinning of Iapetus via an Impact-Generated Satellite
(DDA, Austin, TX, 4/13/11).

Dynamical Origin of Comet Families
(Workshop on Comet Taxonomy, Annapolis MD, 3/13/11).

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(Garfinkel Lecture, Yale, 2/18/11).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(Garfinkel Lecture, Yale, 2/17/11).

The Wholesale Redistribution of Planetesimals During Planet Formation:
The Case for the Solar System
(Planetary Population Synthesis: The Predictive Power of Planet Formation Theory, Ringberg Castle, Germany 11/29/10).

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(RPI, 11/8/10).

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(University of Colorado: LASP, 10/21/10).

Early Dynamical Evolution of the Solar System: Implications for Earth's Volatiles
(The Delivery of Volatiles & Organics - From Earth to Exo-Earths in the Era of JWST,
Baltimore, MD, 9/13/10).

The Orbit Integration Research Project Summary
( NLSI E/PO, Summer Science Program, Santa Barbara and Socorro, 2010).

What planets are and how they form
( Public talk, Delaware Valley Amateur Astronomers, Phila., PA 6/25/10).

Capture of the Sun's Oort Cloud from Stars in its Birth Cluster
(DDA 2010, Boston, 4/26/10)

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(The Organic Continuum from the ISM to the Early Solar System, NAI Organics Workshop, Washington, DC, 3/11/10).

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(Caltech, 3/9/10).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(JPL Exoplanet Talk, 3/8/10)

Oort Cloud Formation - The Role of the Sun's Birth Cluster
(Boston University, 2/4/10).

Review of Dynamic Models Associated with Late Heavy Bombardment
(NSLI Webscast, 11/20/09).

Evaluating Key Processes in the Formation of Giant Planet Cores
(DPS 2009, Puerto Rico, 10/8/09).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(GTCC meeting, Jamestown, NC, 10/3/09).

What planets are and how they form
( Public talk, GTCC meeting, Jamestown, NC, 10/2/09).

Modeling the Formation of Giant Planet Cores
(The Dynamics of Discs and Planets, Cambridge, UK, 8/20/09).

A Nice Story about the Origin of the Kuiper Belt
(TIARA Workshop on Dim KBOs, Nat'l Tsing Hua University, Hsinchu, TAIWAN 12/9/08).

Review of Dynamic Models Associated with Late Heavy Bombardment
(Workshop on Early Solar System Impact Bombardment, LPI 11/19/08).

Usefulness of Dynamics in Classification: Comets and Planets
(DPS 2008, Ithaca, 10/11/08).

Capturing Comets in the Outer Asteroid Belt During the Late Heavy Bombardment.
(ACM 2008, Baltimore, 7/15/08).

What planets are and how they form
( Public talk, Summer Science Program, Socorro MN, 7/1/08).

Modelling the Formation of Giant Planet Cores
(Dynamics of Celestial Bodies, Thessaloniki, Greece, 6/24/08).

Chaotic capture of planetesimals into regular regions of the Solar System. II:
Embedding Comets in the Asteroid Belt
(DDA 2008, Boulder, 4/30/08).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(University of Texas, 3/17/08).

The Chaotic, Early Evolution of the Outer Solar System
(Chaos in Astronomy 2007, Athens, 9/19/07).

Water Delivery From the Outer Planetary System: The Role of Dynamical Instabilities
(Goldschmidt 2007 - Atoms to Planets, Cologne, 8/21/07).

On a Scattered-Disk Origin for the 2003 EL61 Collisional Family.
(DDA 2007, Ann Arbor, 5/9/07).

What planets are and how they form
( Public talk, Aurora Community College, 4/5/07).

The Early Dynamical Evolution of the Outer Solar System and
... The Late Heavy Bombardment of the Moon (NASA HQ, 1/25/07).

A Brief Review of Models of Terrestrial Planet Formation
(Early Planetary Differentiation Workshop, Sonoma County CA, 12/8/06).

Notes on planethood.
( Public notes (Not a complete talk), U of CO, 12/4/06).

What planets are and how they form
( Public talk, Heritage Middle School, 10/30/06).

The Transport from TNOs to NEOs
(IAU Symposium 236, Prague, 8/14/06).

The Primordial Scultping of the Kuiper Belt
(Trans Neptunian Objects: Dynamical and Physical Properties, Catania Italy 7/3/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(Lowell Obs., 4/21/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(CU, 4/3/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(Los Alamos, 3/8/06).

What planets are and how they form
( Public talk, Fiske Planetarium, 2/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(UCLA, 1/12/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(Queen Mary University London, 12/15/05).

What planets are and how they form
( Public talk, Boulder Torch Club, 11/20/05).

The Early Dynamical Evolution of the Outer Solar System: A Fairy Tale
(NOAO/Stewart Obs, 10/6/05).

The Role of Dynamical Friction in Terrestrial Planet Formation
(DPS, Sept. 2005).

The Early Dynamical Evolution of the Outer Solar System: A Fairy Tale
(STScI May Symposium: A Decade Of Extrasolar Planets Around Normal Stars, 5/3/05).

The Role of Giant Planets in Terrestrial Planet Formation and Habitability
(ISSI Meeting on the Evolution of habitable planets, 2/14/05).

Kuiper Belt Diversity
(OPAG, 2/11/05).

The Early Dynamical Evolution of the Outer Solar System: A Fairy Tale
(U of MD. 2/2/05).

Making Trojans During Planet Migration
(DPS 2004).

The Early Dynamical Evolution of the Outer Solar System: A Fairy Tale
(UCSC. 10/21/04).

N-body simulations of planet formation: successes and challenges
(Frontiers in Computational Astrophysics: The Origin of Stars, Planets and Galaxies. 9/27/04).

Interaction of Planetesimals with the Giant Planets and the Shaping of the Trans-Neptunian Belt
(IAU Colloquium 197. 9/3/04).

Dynamics of the Kuiper belt and the Origin of the Planets
(JIMO SwRI. 7/28/04).

JIMO Comet Review
(JIMO SwRI. 7/27/04).

The Solar System - A Timeline
(Harvard-Smithsonian Conference on Theoretical Astrophysics: "Astrophysics of Planetary Systems" 5/17/04).

The Scattered Disk as a Source of Halley-Type Comets
(DDA 2004. 4/22/04).

Ice Giant Migration: Implications for the Solar System and Beyond
(KITP Conference on Planet Formation: Terrestrial & Extra Solar, 3/15-19/04).

Dynamics of the Kuiper belt and the Origin of the Planets
(Ball Aerospace, 2/6/04).

Dynamics of the Kuiper belt and the Origin of the Planets
(Ward's memorial 2004, 1/22/04).

What planets are and how they form
( Public talk, 12/27/03).

Dynamics of the Kuiper belt and the Origin of the Planets
(DPS 2003, 9/5/03).

The Role of Giant Planets in Terrestrial Planet Formation and Habitability
(Exobiology workshop 2003, 8/29/03).

Comets and Volatiles
(Gordon Conference, 7/9/03).

Formation of Terrestrial Planets
(XIXth IAP Colloquium Extrasolar Planets, Today and Tomorrow. 7/3/03).

Pushing out the Kuiper belt
(DDA. 5/7/03).

The Role of Giant Planets in Terrestrial Planet Formation
(EGS. 4/9/03).

A Fairy Tale About the the Formation of Uranus and Neptune
(Planet Formation Workshop, Nice Obs. 2/5/03).

A Fairy Tale About the the Formation of Uranus and Neptune
(O.M.P. Obs., 10/31/02).

A Fairy Tale About the the Formation of Uranus and Neptune
(Nice Obs., 9/17/02).

The Mass Disruption of Oort Cloud Comets
(ACM, 8/1/02).

A Fairy Tale About the the Formation of Uranus and Neptune
(Caltech, 6/4/02).

A Fairy Tale About the the Formation of Uranus and Neptune
(NASA HQ, 5/24/02).

A Fairy Tale About the Early Evolution of the Solar System and the Lunar Cataclysm
(Division of Dynamical Astronomy, 4/24/02).

Planet Formation: Where do we go from here? (Theory/Modeling)
(Debris Disks and the Formation of Planets: A Symposium in Memory of Fred Gillett, 4/13/02).

A Fairy Tale About the the Formation of Uranus and Neptune
(U of MI: Atmospheric, Oceanic and Space Sci., 4/29/02).

Dynamics of the Kuiper belt
(U of MI: Astronomy Dept., 4/28/02).

Scattering of Comets from Transplanetary Disks: the Case of the Solar System
(IAU Manchester).