WSU Presidential Lecture Series: Dr. Neil deGrasse Tyson
For any science geeks...
Dr. Neil deGrasse Tyson is Director of the Hayden Planetarium at the American Museum of National History, and a lecturer at Princeton University. He's written 6 books on astronomy and astrophysics, and is also apparently known for going on The Today Show, according to a friend of mine. So apparently he's a bit of a nerd celebrity.
I would imagine he'll be talking about astronomy/astrophysics, but WSU's website doesn't actually give many details.