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1. Conversations: Part Two
2. Conversations: Part One
3. Earth from the ISS
4. Einstein and Zion
5. Questions and answers:
6. Twisted Passages
7. Lost Realms
8. Havasupai
9. Experience – extending its range.
10. New Grounds
11. Rogue Agent
12. Immortal Spirit
13. July Preview
14. Volcano lightning
15. Exploration – the foundation of science
16. Plains Milky Way
17. Sunset from 106,000 feet
18. Science – a personal adventure
19. Mensa Lecture 2010
20. Secret Entrance
21. Thad Meets TED