(1/08/01) "Loss of Volatile Constituents From the Terrestrial Planets": USC, Earth Sciences Speaker Series

(1/12/01) "Exploring the Lunar Landscape": San Diego Mineral and Gem Society

(1/17/01) "Loss of Volatile Constituents From the Terrestrial Planets": UNLV, Geoscience Lecture Series

(1/17/01) "Mars: Where Did All the Water Go?": Community College of Southern Nevada, Planetarium Lecture

(1/29/01) "Mars: Where Did All the Water Go?": CSU Chico, Geosciences Guest Speaker

(1/30/01) "Mars: Where Did All the Water Go?": CSU Sacramento, Physics Colloquium Series

(1/31/01) "Mars: Where Did All the Water Go?": CSU Hayward, Cummings Geology Club

(2/01/01) "The Geological Case for Life on Mars": CSU Hayward, Seminar in Biology

(2/02/01) "Mars: Where Did All the Water Go?": CSU Fresno, Physics Department Colloquium

(2/05/01) "Mars: Where Did All the Water Go?": Loma Linda University, Natural Sciences Seminar

(2/14/01) "Planetary Geology: The Sulfurous Deposits of Io":CSU Northridge, Physics and Astronomy Colloquium

(2/15/01) "Exploring the Lunar Landscape": CSU Los Angeles, Geology Seminar

(2/16/01) "Exploring the Lunar Landscape": Ventura County Astronomical Society

(2/20/01) "The Geological Case for Life on Mars": Northern Arizona University, Biology Seminar

(2/21/01) "Loss of Volatile Constituents from the Terrestrial Planets": No. Arizona Univ.,Geology Speaker Series

(2/22/01) "Doomsday Asteroids and Comets": Community College of Southern Nevada, Planetarium Lecture

(2/28/01) "Exploring the Lunar Landscape": Southern Utah University, Geology Club Lecture

(3/01/01) "Mars: Where Did All the Water Go?": Southern Utah University, Convocation Lecture Series (Videotaped and broadcast on SUTV-9, Cedar City, Utah)

(3/01/01) "Conversations": A one-half hour interview program on SUTV-9 (Cedar City, Utah)

(3/01/01) "Mars: Where Did All the Water Go?": Dixie State College of Utah, Special Public Lecture

(3/02/01) "Mars: Where Did All the Water Go?": Dixie State College of Utah, Special Educators' Lecture

(3/09/01) "Exploring the Martian Desert": Astronomical Society of the Desert

(3/12/01) "Planetary Geology: The Sulfurous Deposits of Io": CSU Long Beach, Physics and Astronomy Colloquium

(4/04/01) "The Geological Case for Life on Mars": Sigma Xi (San Diego Chapter)

(4/24/01) "Loss of Volatile Constituents from the Terrestrial Planets": U. of Wyoming, Geology Distinguished Lecture Series

(4/26/01) "The Geological Case for Life on Mars": Univ. of  Northern Colorado, Biological Sciences Seminar

(4/26/01) "Mars: Where Did All the Water Go?": Univ. of  Northern Colorado, Seminar in Earth Sciences

(5/03/01) "Mars: Where Did All the Water Go?": CSU Dominguez Hills, Science Society / Sigma Xi Lecture

(6/01/01) "Loss of Volatile Constituents from the Terrestrial Planets": UC Santa Cruz, IGPP Seminar

(6/15/01) "Why is Mars Red?": San Diego Astronomy Association

(6/19/01) "Why is Mars Red?": Coast Geological Society

(7/06/01) "The Sulfur Volcanism of Io": Pomona Valley Amateur Astronomers

(7/13/01) "The Sulfur Volcanism of Io": South Bay Astronomical Society

(8/06/01) "Exploring the Martian Desert": China Lake Astronomical Society

(9/08/01) "Why is Mars Red?": Riverside Astronomical Society

(9/14/01) "Why is Mars Red?": Whittier College, Physics Colloquium Series

(9/18/01) "The Geological Case for Life on Mars": Sigma Xi (Orange County Chapter)

(9/26/01) "Europa: The Other Ocean": Reuben H. Fleet Science Center, Eyes on the Universe Lecture Series

(10/10/01) "Why is Mars Red?": San Diego State University, Astronomy Colloquium

(10/12/01) "Exploring the Lunar Landscape": El Cajon Valley Gem and Mineral Society

(11/07/01) "The Geological Case for Life on Mars": San Diego State University, Geology Lecture Series