Click on the following titles to see the talk. The more recent talks are designed to run on Opera version 8 or higher. Opera is a free web browser that runs on all major platforms. See the bottom of the page for more details and instructions for use.

The Dynamical-Based Definition of a Planet (IAU)
(the Great Planet Debate, APL, Laurel, MD 8/14/08).

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).

A Brief Review of Terrestrial Planet Formation.
(Nobel Symposium 135: Physics of Planetary Systems, Stockholm, 6/21/07).

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, Catanio Italy 7/3/06).

The Early Dynamical Evolution of the Outer Solar System: A Nice Story
(Workshop on Surface Ages and Histories, LPI 5/21/06).

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, 2/8-9/06).

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).

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, 11/9/04).

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).

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).

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

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

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

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
(Cal Tech, 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).

A Fairy Tale About the the Formation of Uranus and Neptune
(MIT, 3/8/02).

A Fairy Tale About the Early Evolution of the Solar System and the Lunar Cataclysm
(DPS 2001, 11/28/01).

The Formation of Uranus and Neptune
(Giant Planet Decadal Survey Meeting, Flagstaff, 10/15/01).

Dynamics of the Kuiper belt
(University of Colorado, 9/17/01).

Dynamics of the Kuiper belt
(Ball Aerospace, 8/16/01).

Dynamics of the Kuiper belt
(Gordon Conference, 6/20/01).

Planet Formation and the Problem with Uranus and Neptune public talk
(Space Day, Thornton, CO, 5/5/01).

The Role of Giant Planets in Terrestrial Planet Formation
(Division of Dynamical Astronomy, 4/25/01).

Are There Terrestrial Planets?
(American Astronomical Soc., Special session on the Terrestrial Planet Finder, 1/8/01).

The Diversity of Outer Planetary Systems and the Formation of Uranus and Neptune public talk
(Denver Astronomical Soc., 11/10/00).

The Origin of Halley-Type Comets: Probing the Inner Oort Cloud
(DPS, 10/25/00).

Scattering of Comets from Transplanetary Disks: the Case of the Solar System
(IAU XXIV General Assembly: JD4: `The Trans-Neptunian Population', 8/11/00).

The Diversity of Outer Planetary Systems and the Formation of Uranus and Neptune
(University of Arizona, 11/15/99).

---

Notes:

• You must have javascipt running to see these talks.
• I am currently using: (Note some of the older talks use different formats)
  • Opera 8 with the font set to Nimbus Sans L [urw] 22.
  • the minimum font size is set to 9.
  • The formatting is set for the full-screen mode on a 1024x768 screen.
• These talks consist of a linear progression of text pages supported by figures and animations.
  
• At the bottom of each of the text pages are links to other text pages.
  • means move to the next page.
  • means move to the previous page.
  • allow me to skip sections of the talk. You would need to know where they go to be able to use them.
  • Sometimes these buttons have subscripts, which take the talks to alternative paths.
  
  
• In each of the text pages figures and animations are unusally marked with a .
  • Clicking these will bring up the figure.
  • Clicking anywhere withing the figure will either bring up the next figure or take you back to the the text page. If another figure comes up then clicking within this figure will eventually take you back to the text page.
  • In the more recent talks, animations are marked with a .
  • Quite often the animation pages will have buttons that control the animation. In these cases, clicking on the figure itself will also start the animation. Animation pages usually have three states: first frame, animation, last frame. So, you must click on the figure 3 times to close the window.
  
  
• Sometimes there are animations on the main page. You must click on them in the sequence described in the last bullet or use the control buttons.
  
• Sometimes the figures on the main pages can be clicked on to get more information on the page. These are usually marked in some way.
  
• If there are small figures in a text page, those surrounded by a box will lead to more inofrmation if they are clicked on.

---

---

Return to the Hal Levison's Homepage

Return to the GAP Homepage

SwRI Homepage

.

---