Lecture 1: Introduction

A brief overview of the topics we will cover in
Astronomy 141, setting the stage for how we can make a serious
scientific inquiry out of the question of whether or not there is life
elsewhere in the Universe. It is a short lecture, the first half was an
overview of course mechanics (tests, homework, office hours, etc.) that
I did not record. Recorded live on 2009 Sep 23 in Room 1005 Smith
Laboratory on the Columbus campus of The Ohio State University.