I'm passionate about communicating the science that I do beyond the walls of academia, through whatever opportunities for education and public outreach that arise.  This is some of what I have contributed...

Education, general talks etc.

NASA Night at Ohlone College

General astrobiology talk to a standing-room-only 400 seat auditorium at Ohlone College, a community college in Freemont, CA (event website). 10 Dec 2009.

Space Week at the Tech

Talks to museum visitors, both children and adults, during the San Jose Tech Museum Space Week. 22 July 2009.

NASA Digital Learning Network

Broadcast seminar to high school and middle school students. 1 April 2009 (DLN site, video)  and 16 June 2009 (for Choctaw Nation Jones Acadamy). 

Media

My research work has been covered in various print and broadcast media:

The Eons of Chaos and Hades

The Economist (html)
New York Times: Schotts Vocab blog (html)
Popsci (html)

Early Earth Nitrogen

New York Times: Opinionator blog (html)
New Scientist (html)
Nature News (html)

Great Oxidation

Nature Podcast (mp3) (html transcript)
New Scientist (html)
The Times (html)
NRC Handelsblad (jpeg)
German Public Radio
UEA ENV Research highlights (html)