| Year | Session | Title | Moderator(s) |
| 1991 | F | The Re-enchantment of Science | Virginia Senders |
| 1995 | S | Physicists & Modern Philosophy | David Navon |
| 1996 | F | Mysteries of Life & The Universe | David Navon |
| 2003 | F | Landmark Events in Science | Hy Edelstein |
| 2007 | S | Men and Women in Science | Richard Mudgett |
| 2007 | F | Energy, Economics, and the Environment | Larry Ambs |
| 2008 | S | Fakes & Fallacies in the History of Science | Bev von Kries |
| 2008 | F | What Is It About Science? | John Armstrong |
| 2010 | S | Observing Nature | Ellen Peck |
| 2012 | S | The Ocean Deep | Hy Edelstein |
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