>> he was a lutheran from martin luther's own university at wittenberg. and copernicus lived in a part of catholic poland where the lutherans had been banished.

>> he was from martin luther's and university of wittenberg and copernicus lift into catholic poland where the lutherans had been banished and the peak of the protestant reformation. but even with all of that going on, copernicus' managed to keep him there for two years, breaking the law, and together they got the book into shape and the young man left with a copy of the manuscript and got it printed in nuremberg and it changed the world. estimate light today are you writing about copernicus? >> i had something new to bring to him which was the idea of writing a play about this unusual meeting between the old recluse and the young itinerant mathematician, different religions, different backgrounds, different sexuality, but they overcame all of those things for the purpose of an idea, and telling the world about that idea. >> a more perfect have been comes out and october, 2011. >> thank you. >>> coming up next, book tv presents "after words," an hourlong program where we invite a guest host interview authors. this week, dana priest and her latest book, quote coach top-secret america