On tonight's episode of "The Simpsons," Lisa signs up to go on a mission to Mars. The two scientists behind the expedition are voiced by "The Best Show" host Tom Scharpling and his comedy partner Jon Wurster (the drummer for Superchunk and the Mountain Goats). Watch clips from their appearance below.

Read our review of Scharpling & Wurster: The Best of the Best Show and our "Situation Critical" interview with them.