November 2025
Lindy Elkins-Tanton, Director of the University of California, Berkeley Space Sciences Laboratory
The NASA Psyche Mission: Preparing for the Science of an Unknown Object
The NASA Psyche Mission: First Visit to an Unknown World
October 2024
Harold Levison, Institute Scientist, Southwest Research Institute
Lucy: The First to the Trojans
Traveling with Lucy on the First Ever Mission to the Trojan Asteroids
October 2023
Meenakshi Wadhwa, School Director and Foundation Professor at the School of Earth and Space Exploration, Arizona State University
Exploration of the Solar System via Sample Return Missions
Bringing Mars Samples Back to Earth
October 2022
Dante Lauretta, Regents Professor of Planetary Science and Cosmochemistry, University of Arizona
OSIRIS-REx and Near-Earth Asteroid Bennu - Returning a Sample of the Early Solar System
Playing Tag with an Asteroid - NASA's OSIRIS-REx Mission at Asteroid Bennu
November & December 2021
Kevin McKeegan, Professor, University of California - Los Angeles
Sampling the Solar System: A key in our quest to understand Earth's origin and evolution
The Laboratory Analysis of Solar Matter and Implications for Nebula Chemistry
November 2019
Kip S. Thorne, Richard P. Feynman Professor of Theoretical Physics, Emeritus, California Institute of Technology
Exploring the Warped Side of the Universe with Gravitational Waves: From the Big Bang to Black Holes
November 2018
David Charbonneau, Professor of Astronomy, Harvard University
How to Find an Inhabited Exoplanet
The Terrestrial Planets of Other Stars
October 2017
Jun Ye, JILA, NIST and University of Colorado Boulder
Optical Atomic Clock and Applications
Cold Molecules - A New Playground for Quantum and Chemical Physics
November 2016
Gabriela Gonzalez, Professor of Physics and Astronomy, Spokesperson for the LIGO Collaboration, Louisiana State University
Einstein, Gravitational Waves and Black Holes
Searching for -- and Finding! Gravitational Waves
November 2015
Edward C. Stone, David Morrisroe Professor of Physics, Vice Provost for Special Projects, California Institute of Technology
The Voyager Journey to Interstellar Space
Voyager Explores the Edge of Interstellar Space
October 2014
Ramesh Narayan, Thomas Dudley Cabot Professor of the Natural Sciences, Harvard University
Black Holes
Astrophysical Black Holes
November 2013
Shrinivas Kulkarni, McArthur Professor of Astronomy & Planetary Science, California Institute of Technology
Booms, Burps & Bumps: The Dynamic Universe
There Is More Room Sideways
November 2012
Maria Zuber, E. A. Griswold Professor of Geophysics, Massachusetts Institute of Technology
Perspectives on the First Billion Years of Lunar Evolution from Spacecraft
Water on the Moon
October 2011
Dr. Charles F. Kennel, Chair of the National Academies Space Studies Board
NASA at mid-life: The future of human space exploration
Managing Climate Risk: Precarious Decades Ahead
October 2010
Lieutenant Colonel Robert L. Behnken, Astronaut
Astronaut Preparation
Missions to the International Space Station
October 2009
Andrew H. Knoll, Fisher Professor of Natural History and Professor Earth and Planetary Sciences, Harvard University
Mars as the Abode of Life?
October 2008
Raymond E. Arvidson, James S. McDonnell Distinguished University Professor, Washington University in St. Louis
Mars: Environments, Habitability, and Life