Neil DeGrasse Tyson, an astrophysicist who has appeared on "The Daily Show," "The Colbert Report" and "Real Time With Bill Maher," will be the speaker at tomorrow's Drake University Bucksbaum Distinguished Lecture Series. Tyson has served on commissions for former President George W. Bush and has also written 10 books. The free event will start at 7 p.m. at the Knapp Center, 2601 Forest Ave. For more information, click here.