Definitely the best general Astronomy podcast on the store: Galactic in scope, Universal in appeal, yet Human in understanding.
The superb witty British introductions and endings even make it a sure cure for anyone who tells you, "I can't look through your telescope. I won't see anything because I was no good at science."
The Jodcast mercifully spares us 'Gee's, 'Awesome's and 'Cool's, translates the papers and data into the comprehensible and, most excitingly, lets us hear the voices of the discovers themselves.
For those interested in Astronomy it has become our first stop ahead of the Hubble site.