Here it is, the slides (with some slight modifications and in PDF format) from my seminar on the possibility of microbial life on Mars given to the local Astronomy Club. The talk went well, from what I could tell, and I had a good time (and I hope everyone else did too, on top of learning something!). The slides are not "complete" in the sense that you might be able to glean all the information I spoke about by simply viewing them. That's because slides IMO should mostly be written from the vantage point of the lecturer, so as to be used as a guide for them and remind them of what they're going to say (if people are reading my slides, they're not paying attention to me speaking ... that's not a Good Thing). So you won't see many full sentences in these slides, just bullet points to jog my memory. And some snazzy eye candy (pictures). Alas, since it's PDF, all addtional eye candy (movement) is lost. I don't use special effects in my actual talks/seminars but for the local Astronomy Club, I figured what the heck. People thought the stuff I did was amusing (like the space-faring sea monkeys to illustrate the ideas of "forward contamination" and "panspermia".
Anyways, here it is: Martian Life Scribd is a pretty cool site, and it's free!