Terry Gross

Astrophysicist Saul Perlmutter is part of the team that was awarded the 2011 Nobel Prize in physics for the discovery that the expansion of the universe is not slowing down but is accelerating. The results of that research suggest the universe is filled with dark energy.

The actress stars in Lars von Trier's new psychological drama Melancholia, about depression and the end of the world. She talks about making the film and about working with Von Trier, whose controversial remarks about Hitler got him kicked out of this year's Cannes Film Festival.

Joe Henry has produced albums by Solomon Burke, Allan Toussaint, Hugh Laurie and others. The versatile singer, songwriter and producer has just released Reverie, his 12th album. It features acoustic performances from a three-day jam session in his basement.