Tuesday Feb. 1: Roger Blandford, California Institute of Technology, To be Decided

Tuesday Feb. 8: Neil Brandt, Pennsylvania State University, X-Ray from AGN

Tuesday Feb. 15: Tony Tyson, Lucent Technology, Weak Lensing

Tuesday Feb. 22: David Weinberg, Ohio State University, Lyman Alpha Clouds

Tuesday Feb. 29: David Stevenson, California Institute of Technology, Planetary Science

Tuesday March 7: Ed Jenkins, Princeton University, Early Results from FUSE

Tuesday March 21: Richard Mushotzky, NASA/Goddard, The X-Ray Background, Black Holes and Chandra

Tuesday March 28: Tom Shutt, Princeton University, Physics, Recent Results from the CDMS: A New Era in the Search, for WIMP Dark Matter

Tuesday April 4: Peng Oh, Princeton University Graduate Student, Observational Signatures of the First Luminous Objects AND
Renyue Cen , Princeton University, Cosmic Chemical Evolution

Tuesday April 11: Robert Kennicutt, University of Arizona, Recipe for Global Star Formation in Galaxies

Tuesday April 18: David Goldberg, Princeton University Graduate Student, Running Observations Backwards in Time AND
Przemyslaw Wozniak, Princeton University Graduate Student, Optical Gravitational Lensing Experiment: Difference Image, Analysis of the Bulge Data

Tuesday April 25: Arielle Phillips, Princeton University Graduate Student, X-ray Emission from Filaments AND
Rita Kim, Princeton University Graduate Student, Clusters of Galaxies in the Sloan Digital Sky Survey

Tuesday May 2: John Carlstrom, Lyman Spitzer Lecture, University of Chicago, TBA

Tuesday May 9: David Helfand, Columbia University, From 5pc to z=5: A FIRST View of the Radio Universe

Tuesday May 16: Pawan Kumar, Institute of Advanced Study, Helioseismology

Tuesday May 23: Gibor Basri, University of California, Berkeley, Brown Dwarfs



Tuesday Feb. 2: Bruce Draine, Princeton University, The Alignment of Interstellar Grains

Tuesday Feb. 9: Simon Lilly, University of Toronto, Deep Sub-millimeter Surveys and the Hidden Phases of Galaxy Formation

Tuesday Feb. 16: Sangeeta Malhotra, National Optical Astronomy Observatories, Understanding ISM Energetics from ISO Far-Infrared Spectroscopy of Normal Galaxies

Tuesday Feb. 23: John Monnier,University of California, Berkeley, Interferometry with the Keck I Telescope

Tuesday March 2: Elizabeth Lada, University of Florida, Investigations of the Formation and Evolution of Stars and their Circumstellar Disks in Young Embedded Clusters

Tuesday March 9: Jacqueline van Gorkom, Columbia University, The Structure of Clusters and the Evolution of their Galaxy Population

Tuesday March 23: Tom Soifer,California Institute of Technology, Ultraluminous Infrared Galaxies: Studying Forming Galaxies in our Backyard

Tuesday March 30: Paul Horowitz, Harvard University, Optical SETI

Tuesday April 6: J.Davy Kirkpatrick, IPAC, The Discovery of L Dwarfs and the Field Brown Dwarf Mass Function

Tuesday April 13: Donald K. Yeomans, NEAR Mission, Jet Propulsion Laboratory, The Near-Earth Population of Comets and Asteroids

Tuesday April 20: Joe Weingartner, Princeton University, Grain Dynamics in Photodissociation Regions AND
Michael Blanton,
Princeton University, Realistic Galaxy Formation Models and Large-Scale Structure Statistics

Tuesday April 27: Judy Cohen, California Institute of Technology, The Caltech Faint Galaxy Redshift Survey

Tuesday May 4: Xiaohui Fan, Princeton University, High-z quasars from SDSS AND
Erick Lee,
Princeton University, Star Formation at the Galactic Center

Tuesday May 11: Alex Filippenko, University of California, Berkeley, Supernovae and Their Cosmological Implications

Tuesday May 18: Dan Jaffe, University of Texas, New Views of the Molecular ISM



Tuesday February 3: Chris Kochanek, Harvard University, The Optical Properties of Gravitational Lens Galaxies as a Probe of Galaxy Structure and Evolution

Tuesday February 10: Harry McSween, University of Kantucky, Evidence for Life in a Martian Meteorite?

Tuesday February 17: Dale Frail, National Radio Astronomy Observatory, Shock-Excited Maser Emission From Supernova Remnants

Tuesday February 24: Anthony Stark, Smithsonian Astrophysical Observatory, Submillimeter-Wave Astronomy from the South Pole and Prospective Applications to Observational Cosmology

Tuesday March 3: Simon White, Max-Planck-Institut fur Astrophysik, The Formation of Galaxies

Tuesday March 10: Francois Schweizer, Department of Terrestrial Magnetism Carnegie Institution of Washington, Galactic Mergers and Globular Cluster Formation,

Tuesday March 24: David Tytler, University of California at San Diego, Deuterium and the Baryon Density

Tuesday March 31: Ed Morgan, Massachusetts Institute of Technology, RXTE Observations of Quasi-Periodic Oscillations in Galactic Microquasars,

Tuesday April 7: Jill Tarter, SETI Institute, Project Phoenix: Results From SETI Observations on the NRAO 140' and Future Plans

Tuesday April 14: Donald Winget, University of Texas, White Dwarf Stars as Cosmic Chronometers

Tuesday April 21: Claire Max, Lawrence Livermore National Laboratory, Laser Guide Stars and Adaptive Optics for Astronomy

Tuesday April 28: Oleg Gnedin, Princeton University Graduate Student, Tidal Effects and Galaxy Evolution in Clusters of Galaxies AND
Jeremy Kepner, Princeton University Graduate Student, Gas Behavior in Galaxy Formation,

Tuesday May 5: Saul Teukolsky, Cornell University, Black Hole Collisions,

Tuesday May 12: Reinhard Genzel, Max-Planck-Institut fur Extraterrestrische Physik, tba

Tuesday May 19: Neil deGrasse Tyson, Hayden Planetarium, Bringing the Universe Down to Earth: Designing the 21 st Century Planetarium



Tuesday, Feb. 4: Ue-Li Pen, Harvard-Smithsonian Center for Astrophysics, The Abundance of Rich Clusters of Galaxies

Tuesday, Feb. 11: David Spergel, Princeton University, Microwave Background Fluctuations: Current Status, Future Prospects,

Tuesday, Feb. 18: Jordi Miralda-Escude, University of Pennsylvania, Evolution of the Intergalactic Medium and the Cosmic Baryon Density,

Tuesday, Feb. 25: Abraham Loeb, Harvard-Smithsonian Center for Astrophysics, Structure Formation in the Universe at High Redshifts

Tuesday, March 4: Christopher Stubbs, University of Washington, Recent Results from the MACHO Collaboration,

Tuesday, March 11: Douglas Gough, Cambridge University, Material Transport in the Sun,

Tuesday, March 25: Walter Lewin, Massachusetts Institute of Technology, Millisecond X-ray Pulsations from Accreting Neutron Stars: Have We Found the Holy Grail?

Tuesday, April 8: Michael Rupen, National Radio Astronomy Observatory, A Snowball's Chance in Hell: The Cold Interstellar Media of Early-type Galaxies

Tuesday, April 15: Wesley Colley, Princeton University Graduate Student, Topology and Related Statistics in Large Cosmological Surveys, AND
Andrew Ulmer,
Princeton University Graduate Student, Tidal Disruption of Stars by Massive Black Holes

Tuesday, April 22: Jane Charlton, Pennsylvania State University, What are MgII Absorbers? – Tracing the Evolution of the Gaseous Morphology of Galaxies

Tuesday, April 29: Fred Adams, University of Michigan, Theory of the Initial Mass Function for Star Formation in Molecular Clouds

Tuesday, May 6: Yasushi Suto, University of Tokyo, Cosmological Redshift-Space Distortion of the Two-Point Correlation Function

Tuesday, May 13: John Huchra, Harvard-Smithsonian Center for Astrophysics, Closing in on the Hubble Constant,



Tuesday, February 6: Ned Wright, University of California, Los Angeles, Cobe 4 Year Results

Tuesday, February 13: Andrei Linde, Stanford University, Inflation and the Global Structure of the Universe

Tuesday, February 20: Stephen Shectman, Carnegie Observatories, Deep Slices of the Universe

Tuesday, February 27: Eve Ostriker, Harvard-Smithsonian Center for Astrophysics, The Internal Dynamcs of Magnetized Molecular Clouds

Tuesday, March 5: Ethan Vishniac, University of Texas, Turbulence, Magnetic Fields, and Reconnection

Tuesday, March 12: David Neufeld, Johns Hopkins University, Megamasers as a Probe of Disk Accretion onto Supermassive Black Holes

Tuesday, March 26 Mark Dickinson, Space Telescope Science Institute, Galaxies and Clusters at High Redshift

Tuesday, April 2: Tom Statler, Ohio University, The True Shapes of Elliptical Galaxies

Tuesday, April 9: Adrian Melott, University of Kansas, Evolution of the Potential in Gravitational Clustering

Tuesday, April 16: Shri Kulkarni, California Institute of Technology, Discovery of A Cold, Brown Dwarf

Wednesday, April 24: Marc Buie, Lowell Observatory, Hubble Space Telescope Images of Pluto

Tuesday, April 30: Krzysztof Stanek, Princeton University, OGLE and the Milky Way as a Barred Spiral AND
James Rhoads,
Princeton University Graduate Student, The Stellar Origins of Weak Infrared Light

Tuesday, May 7: Paul Butler, University of California at Berkeley, The Recent Discovery of Giant Extrasolar Planets

Monday, May 13: Story Musgrave, NASA Astronaut, The Hubble Space Telescope Repair Mission

Tuesday, May 21: George Preston, (The Jeffrey L. Bishop Memorial Lecture), The Observatories of the Carnegie Institution, Observational Evidence for Satellite Accretion by the Milky Way Galaxy



Tuesday, Feb. 7: Bohdan Paczynski, Princeton University, Results from the OGLE (Optical Gravitational Lensing Experiment)

Tuesday, Feb. 14: Lennox Cowie, University of Hawaii, Cosmology with Keck

Tuesday, Feb. 21: Richard Mushotzky, Goddard Space Flight Center, Mass and Mass Distributions of Clusters and Elliptical Galaxies
from X-Ray Imaging Spectroscopy

Tuesday, Feb. 28: Jane Luu, Harvard/Smithsonian Center for Astrophysics, Comets, the Kuiper Belt, etc.

Tuesday, March 7: Stephen Thorsett, Princeton University, Physics, Binary Radio Pulsars as Physicist's Tools

Tuesday, March 21: Michael Hauser, Goddard Space Flight Center, The COBE DIRBE Search for the Cosmic Infrared Background

Tuesday, March 28: Robert Kirshner, Harvard/Smithsonian Center for Astrophysics, Taking the Measure of the Universe

Tuesday, April 4: Michael Bolte, University of California, Santa Cruz, The Age of the Universe Problem

Tuesday, April 11: Charles Steidel, Massachusetts Institute of Technology, Normal Galaxies Since z=3.5: A Bootstrap Approach

Tuesday, April 18: Alan Dressler, Observatories of the Carnegie Institute of Washington, Morphological Evolution of Galaxies: HST Pictures of Distant Clusters

Tuesday, April 25: Penny Sackett, Kapteyn Astronomical Institute, Groningen, Faint Galaxy Halos

Tuesday, May 2: Barry Madore, California Institute of Technology, The Hubble Space Telescope Key Project on the Extragalactic Distance Scale

Tuesday, May 9: Tomislav Kundic, Princeton Graduate Student, Quasar-Galaxy Correlations at High Redshift AND
Lori Lubin,
Princeton Graduate Student, The Evolution of Clusters of Galaxies: The Palomar Faint Cluster Survey

Tuesday, May 16 Ue-Li Pen, Princeton Graduate Student, Adaptive Mesh Hydrodynamic Simulations of Clusters of Galaxies AND
Guohong Xu,
Princeton Graduate Student, Properties of Clusters of Galaxies in Various Cosmological Models

Tuesday, May 23: John Kormendy, University of Hawaii, Inward Bound: The Search for Supermassive Black Holes in Galaxy Nuclei



Tuesday, February 1: John N. Bahcall, Institute for Advanced Study, Solar Neutrinos: What We Have Learned

Tuesday, February 8: Masataka Fukugita, Kyoto University, Japan, Determination of the Hubble Constant: Current Status

Tuesday, February 15: Michael A. Strauss, Institute for Advanced Study, Quantitative Cosmology from Redshift and Peculiar Velocity Surveys of the Local Universe

Tuesday, February 22: Pawan Kumar, Massashusetts Institute of Technology, Recent Results in Helioseismology

Tuesday, March 1: Andrzej Zdziarski, Poland, X-rays/Gamma-rays from Seyfert Galaxies and the Cosmic X-ray Background

Tuesday, March 8: Edmund Bertschinger, Massachusetts Institute of Technology, Gravitational Instability of Cold Matter: Pancakes or Filaments?

Tuesday, March 22: Marc Postman, Space Telescope Science Institute, The Motion of Galaxies on Very Large Scales

Tuesday, March 29: Hans-Walter Rix, Institute for Advanced Study, Galaxy Kinematics Beyond the Gaussian Dogma

Tuesday, April 5: Alyssa Goodman, Harvard University, The Truth About Polarization and Magnetic Field Structure in the Interstellar Medium

Tuesday, April 12: Roger Blandford, California Institute of Technology, Gamma-Rays from Active Galactic Nuclei

Tuesday, April 19: Paul Joss, Massachusetts Institute of Technology, Massive Supernovae in Binary Systems

Tuesday, April 26: Ethan Vishniac, University of Texas, The Flow of Angular Momentum in Accretion Disks: Torques, Dynamos, and Observations

Tuesday, May 3: Frank Shu, University of California, Berkeley, Formation of Sunlike Stars

Tuesday, May 10: Marc Davis, University of California, Berkeley, Cosmology with Velocity and Density Fields: New Methods and Results

Tuesday, May 17: Julianne Dalcanton, Princeton University Graduate Student, Bumps in the Extragalactic Background: Low Surface Brightness Galaxies and High-Redshift Clusters AND
Sangeeta Malhotra,
Princeton University Graduate Student, The Vertical Equilibrium of Atomic and Molecular Gas in the Galactic Disk

Tuesday, May 24: Shrinivas Kulkarni, California Institute of Technology, Soft Gamma Ray Repeaters Revealed by taheir Plerions



Tuesday, January 26: C. Stuart Bowyer, University of California, Berkeley, New Results from the EUVE Satellite

Tuesday, February 2: Michael Rich, Columbia University, The History of the Galactic Bulge

Tuesday, February 9: Joseph Patterson, Columbia University, Precessing Accretion Disks and Superhump Binaries

Tuesday, February 16: Malvin Ruderman, Columbia University, Neutron Star Plate Tectonics and Magnetic Field Evolution

Tuesday, February 23: Ted Williams, Rutgers University, Fabry-Perot Astronomy

Tuesday, March 2: Lee Hartmann, Center for Astrophysics, Disk Accretion and Winds in Early Stellar Evolution

Tuesday, March 9: Krzysztof Gorski, Universities Space Research Association, NASA/GSFC, The Cosmic Microwave Background and Large Scale Structure in the Universe: Begining to Probe the Final Astronomical Frontier

Tuesday, March 16: Prof. Humitaka Sato, Kyoto University, Shell Expansion in the Expanding Universe

Tuesday, March 23: Nolan R. Walborn, Space Telescope Science Institute, Stellar Spectral and Spatial Morphology of Massive Star Formation Regions

Tuesday, March 30: Regina Schulte-Ladbeck, University of Pittsburgh, Spectropolarimetry

Tuesday, April 6: Marc Kutner, Rensselaer Polytechnical Institute, Molecular Clouds and Star Formation in the LMC

Tuesday, April 13: J. Craig Wheeler, University of Texas, Black Hole X-Ray Novae

Tuesday, April 20: Steve Odewahn, University of Minnesota, A Survey of the North Galactic Pole Using the Automated Plate Scanner

Tuesday, April 27: Alan Stern, Southwest Research Institute, The Origin of the Pluto-Charon Binary

Tuesday, May 11: Abe Stone, Princeton University Graduate Student, "to be announced"  AND

Gabor Toth, Princeton University Graduate Student, Instability of Shockwaves in the ISM

Tuesday, May 18: Suvendra Dutta, Princeton University Graduate Student, Numerical Simulation of Galaxy and Cluster Formation in an Expanding Universe AND
Michael Woodhams,
Princeton University Graduate Student, Submillimetre Observations of Mass Loss from Cool Stars

Tuesday, May 25: Günther Hasinger, Max-Planck-Institut Für Extraterrestrische Physik, The X-ray Background



Tuesday, February 11: Wojciech Dziembowski, Astronomical Center, Poland, Helioseimological tests of physical fundamentals for modelling stellar evolution: opacities, equation of state, convective overshooting, gravitational settling of helium

Tuesday, February 18: Samuel Vainshtein, USSR Academy of Sciences, Moscow, Nonlinear Restrictions on Dynamo Action

Tuesday, February 25 Charles Meegan, Marshall Space Flight Center, GRO/BATSE results

Tuesday, March 3 Marc Kutner, Rensselaer Polytechnic Institute, Molecular Gas in the LMC

Tuesday, March 10 George Wasserburg, California Institute of Technology, Isotopes and Meteorites

Tuesday, March 24 Shude Mao, Princeton Graduate Student, Gravitational Lensing of γ-ray Bursts AND
Gabor Toth,
Princeton Graduate Student, Satellite Galaxies and Thin Disks

Tuesday, March 31 Rich Kron, Fermi National Accelerator Laboratory, Faint Blue Galaxies

Tuesday, April 7 Ralph Pudritz, McMaster University, Canada, Star Formation and Magnetic Fields?

Tuesday, April 14 Bob McClure, Dominion Astrophysics Observatory, Canada, Distant Galaxies Through the Eyes of CFHT/HR/Cam

Tuesday, April 21 Bill Press, Center for Astrophysics, Analysis of Irregular Data: How to Play Connect-the-Dots in a Fractual World

Tuesday, April 28 Ray Weymann, Mt. Wilson & Las Campanas Observatory, Radio-Loud and Radio-Quiet Quasars, and the BALQSO-Radio-Loud Anticorrelation

Tuesday, May 5 Barbara Williams, University of Delaware, Neutral Hydrogen in Compact Groups of Galaxies

Tuesday, May 12 Wendy Freedman, Carnegie Observatories, Extra Galactic Distance Scale, Cepheids, and the Hubble Constant

Tuesday, May 19 Anneila Sargent, California Institute of Technology, The Circumstellar Environments of T Tauri Stars – Sites of Planet Formation?

Tuesday, May 26 Richard Ellis, The 1992 Jeffrey L. Bishop Lecture, Durham University, Faint Blue Galaxies: A Cosmological Conundrum

Tuesday, June 2 Charles Meegan, Marshall Space Flight Centre, BATSE Observations of γ-ray Bursts