Set your clocks, watches, Tivos, VCRs, or whatever: astronomer and alien hunter Seth Shostak will be on the Colbert Report tonight!
Seth is a funny guy, a smart guy, and a good writer (his latest book, Confessions of an Alien Hunter, is great), so I suspect this will be a very interesting interview. But don't take my word for it; NatGeo made a video about his book that'll make this point:
I'm really excited for him (even if I couldn't bribe him into giving Colbert a copy of my book), and can't wait to see this! Check your local listings.