Life on Mars
- Livestream Commentary: Mars Perseverance Entry, Descent, and Landing (Feb 2021)
- Watch the MAVEN Launch With Me: Monday at 10am Pacific (Nov 2013)
- Mars Rover Rocker-Bogie Differential (Jul 2012)
- Summer Solstice Sunset – 2010 (Jun 2010)
- Mineral Indications of Water (Feb 2010)
- Magnetotactic Bacteria (Dec 2009)
- Answering Questions: Life on Other Planets? (Dec 2009)
- Magnetotactic Bacteria from Mars? (Dec 2009)
- Answering Questions: Life on Mars? (Nov 2009)
- Vacations to Mars and Pacific Science Center (Apr 2009)
- Short. Life on Mars? (Jan 2009)