Not sure how many of us catch the Science Friday podcast (or NPR radio program) - but this week was exceptionally good for us geeks. Saul Perlmutter (a Philadelphia native - who is the frequent but of Sheldon's jokes on Big Bang Theory) and Jill Tarter (the movie Contact is based upon her and her work) share the stage. It was excellent.
http://www.sciencefriday.com/segment/05/10/2013/exploring-an-ever-expanding-universe.html (http://www.sciencefriday.com/segment/05/10/2013/exploring-an-ever-expanding-universe.html)