| # | Episode Title | Description | People | Date | |
|---|---|---|---|---|---|
| 1 | Creative Commons | 14. The caramel tree | Why the Katsura tree smells of caramel and how analytical techniques have solved the problem of what is responsible for the smell. | James McCullagh | 18 Oct 2012 |
| 2 | An introduction to Geoscience | Using Isotope geochemistry to understand the origins of planets and the present day natural behaviour of the Earth. | Alex Halliday | 12 Sep 2008 |