Life
- Mineral Indications of Water (Feb 2010)
- Answering Questions: Life on Other Planets? (Dec 2009)
- Magnetotactic Bacteria from Mars? (Dec 2009)
- Animal Astronomy (Jun 2009)
- Aliens? Yes. UFOs? No. (Dec 2008)
- Seattleites: Come to Science with a Twist! (Sep 2008)
- Astrobiology Rap (Aug 2008)
- A Series of Questions (II) (May 2008)