One of the topics on NPR's
Talk of the Nation - Science Friday today will be the lunar farside (which, ahem, is not the same thing as the "dark" side...). Coming up in one hour. In Hour 2, Ira Flatow will talk with Neil DeGrasse Tyson, astronomer and science popularizer, about Pluto.
(And don't forget that the New Horizons probe will reach Pluto in 2015.)
If you miss them, NPR archives the programs, downloadable in mp3 format.