2016
Kathy McTavish, cellist, composer and multimedia artist
"br1Nk"

2014
Alan Lightman, Professor of the Practice of the Humanities in the departments of Creative Writing and Physics, Massachusetts Institute of Technology
"At the Crossroads of Art and Science"

2013 (fall semester)
Rosemary Mosco, nature cartoonist and science educator
"Drawn to Learn: Cartoons and other Unusual Ways to Share Science"

2013 (spring semester)
Anthony F. Aveni, Russell Colgate Distinguished University Professor of Astronomy, Anthropology, and Native American Studies, Colgate University
"Doomsday Scenarios and the Ancient Maya: At the Crossroads of Culture, Science, and Religion"

2012
Eugenie C. Scott, PhD, executive director, National Center for Science Education
"In the Beginning: Science and Religion"

2011
David G. Stork, chief scientist, Ricoh Innovations
"When Computers Look at Art: Image Analysis in Humanistic Studies of the Visual Arts"

2010
Jonah Lehrer, author
"The Future of Science is Art, or What We Can Learn About the Brain From Marcel Proust, a 19th Century Chef, and Kanye West"

2009
Spencer Finch, artist
"Beauty and the Scientific Method"

2008
Alice Dreger, professor of clinical medical humanities and bioethics, Feinberg School of Medicine, Northwestern University
"Body Modification and the Future of Normal"

2007  
David Macaulay, author/architect
"Body Building and Other Architectural Journeys"

2006
Manjul Bhargava, professor of mathematics, Princeton University
"Drumming and Poetry: The Nature of Human Thought and the Origins of Mathematics"

2005
William Rathje, professor, Stanford University
"Garbology: The Archaeology of Us"

2004
Bill McKibben, author/social critic/environmentalist
"Technology: Invasion of the Soul?"

2003
Steven Wise, American legal scholar
"Consciousness: For Humans Only?" (animal consciousness)

John Holland, professor of electrical engineering and computer science, professor of psychology, University of Michigan
"Consciousness: For Humans Only?" (artificial intelligence)

2002
Patch Adams, physician, founder/director of the Gesundheit Institute
"Alternative Medicine"

2001
Robert D. Bullard, Ware Professor of Sociology, director of the Environmental Justice Resource Center, Clark Atlanta University
"Environmental Justice for All: The Politics of Pollution"

2000
Kristin Dawkins, vice president for international programs, Institute for Agriculture and Trade Policy (Minneapolis)
"Agriculture and Biotechnology: Battle Royal of the 21st Century"

Martha Crouch, professor of biology, Indiana University
"From Golden Rice to Terminator Technology: The Trouble with Biotechnology in Agriculture"