Selected Recent Presentations

• There's No Place Like Home: Earth Science at the Millennium, initial lecture in the "Discoveries of the 20th Century" series, sponsored by the Smithsonian Associates in celebration of the 50th anniversary of the National Science Foundation, Washington, D.C., 17 May 2000.

• The Seven Ages of Terrestrial Planetary Science and the Pervasive Contributions of William Kaula, presented at a special session in honor of William M. Kaula at the Fall AGU Meeting, San Francisco, Calif., 15 December 2000.

• The Harold Masursky Lecture, An Earth in Moon’s Clothing?, or Mercury as an Object Lesson on Approaches to Planetary Exploration, 32nd Lunar and Planetary Science Conference, Houston, Tex., 12 March 2001.

• Citation for James W. Head, III, G. K. Gilbert Award, Planetary Geology Division, Geological Society of America, Denver, Colo., 29 October 2002.

• When Mars Was the Most Earth-like Planet, A.O.C. Nier Memorial Lecture, University of Minnesota, 2 October 2003.

• On Planetary Evolution and the Evolution of Planetary Science During the Career of Don Anderson, Fall AGU, San Francisco, Calif., 8 December 2003.

• The Footprints of Nafi Toksöz on the Moon and the Planets and Where They Have Led, M. Nafi Toksöz Symposium, M.I.T., Cambridge, Mass., 25 May 2004.