| September 15 | Dr. Adam Steltzner, JPL |
| Due to illness, Dr. Adam Steltzner's colloquium has been cancelled. | |
| Host: R.D. Gehrz | |
| September 22 | Dr. William Reach, Spitzer Science Center |
| Title: "Star Formation in the Elephant Trunk Nebula" | |
| Host: M. Kelley | |
| September 29 | Dr. Sebastian Hidalgo, U. Minnesota, Astronomy |
| Title: "On the Extended Structures of Dwarf Galaxies" | |
| Host: - | |
| October 6 | Dr. Jacco van Loon, Keele University |
| Title: "Red (Super)Giants and Their Galactic Ecology" | |
| Host: C. Woodward | |
| October 13 | No Colloquium |
| October 20 | Dr. Michel Janssen, U. Minnesota, Hist. Sci. & Tech. |
| Title: "Why Einstein Introduced the Cosmological Constant" | |
| Host: T.J. Jones | |
| October 27 | Dr. Ludmilla Kolokolova, U. Maryland |
| Title: "The Deep Impact Mission: What We Have Learned" | |
| Host: T.J. Jones | |
| November 3 | Dr. Eiichiro Komatsu, U. Texas |
| Title: "Polarized Light in the Cosmic Microwave Background: WMAP Three-Year Results" | |
| Host: S. Hanany | |
| November 10 | Dr. Roy Gal, U. California, Davis |
| Title:"The ORELSE Survey: Observations of Redshift Evolution in Large Scale" | |
| Host: L. Rudnick | |
| November 17 | Dr. Jennifer Hoffman, UC Berkeley |
| Title: "Polarized Line Profiles as Diagnostics of Circumstellar Geometry in Type IIn Supernovae" | |
| Host: A. Cole | |
| Novemeber 24 | No Colloquium - Thanksgiving |
| December 1 | Dr. Patrick Slane, Harvard-Smithsonian, CfA |
| Title: "The Structure and Evolution of Pulsar Wind Nebulae" | |
| Host: T.W. Jones | |
| December 8 | Dr. James Truran, U. Chicago |
| Title: "Type Ia Supernovae: Energetics, Explosions and Nucleosynthesis" | |
| Host: R.D. Gehrz |