Off topic: Kinja's eaten at least two of my comments today. Whuddup with that?

Anyway, I'm a both a scifi nut and a theatre nut, but never have the two met. I'm curious to know if anyone's ever read or seen a scifi play or musical. The theatrical world's always been very brave about taking on new and unusual subject matter, but scifi seems to have been missed. Even fantasy gets its time to shine on stage.

Can anyone think of any titles or productions?