April 29, 2006
Exploring the Limits of Life in the Highest Lakes on Earth
Bruce Museum
Greenwich, Connecticutt
February 3, 2006
Mars Water and Habitability
San Mateo Astronomy Club
San Mateo, California
February 2, 2006
Panel discussion after viewing of IMAX file "Roving Mars"
The Tech Museum
San Jose, California
May 18, 2005
The Discoveries of Spirit and Opportunity, the Mars Expedition Rovers
Silicon Valley Astronomy Lecture Series
Foothill College
Mountain View, California